Select the sentence that is complete and properly punctuated. a. from 10% to 20% of school-aged children develop intense anxiety over some issue for instance children with school phobia feel intense apprehension about attending school. b. from 10% to 20% of school-aged children develop intense anxiety over some issue, for instance; children with school phobia feel intense apprehension about attending school. c. from 10% to 20% of school-aged children develop intense anxiety over some issue, for instance, children with school phobia feel intense apprehension about attending school. d. from 10% to 20% of school-aged children develop intense anxiety over some issue; for instance, children with school phobia feel intense apprehension about attending school.

The sentence that is complete and properly punctuated is D. From 10% to 20% of school-aged children develop intense anxiety over some issue; for instance, children with school phobia feel intense apprehension about attending school.

Explanation: Sentence D. is the only one that is complete and properly punctuated because it expresses a full idea and makes a good use of punctuation marks. Punctuation rules state that, when using "for instance" in a sentence, a semicolon must precede this term and a comma must come after it. In that way, as D. is the only option that includes a semicolon before "for instance" and a comma after it, this sentence can be considered properly punctuated.

source text: from the sketch here given it will be seen, that our good grandmothers differed considerably in their ideas of a fine figure, from their scantily dressed descendants of the present day. a fine lady, in those times, waddled under more clothes even on a fair summer's day, than would have clad the whole bevy of a modern ball room. nor were they the less admired by the gentlemen in consequence thereof. on the contrary, the greatness of a lover's passion seemed to increase in proportion to the magnitude of its object—and a voluminous damsel, arrayed in a dozen of petticoats, was declared by a low-dutch sonnetteer of the province, to be radiant as a sunflower, and luxuriant as a full blown cabbage. certain it is, that in those days, the heart of a lover could not contain more than one lady at a time; whereas the heart of a modern gallant has often room enough to accommodate half a dozen - - the reason of which i conclude to be, either that the hearts of the gentlemen have grown larger, or the persons of the ladies smaller — this however is a question for physiologists to determine. add punctuation to the following excerpt. writing under the name of diedrich knickerbocker washington irving aimed his potent satire at as diverse topics as political rivals such as thomas jefferson to the very ideal of looking back on the past affectionately: a fine lady, in those times, waddled under more clothes even on a fair summer's day, than would have clad the whole bevy of a modern ball room. a voluminous damsel, arrayed in a dozen of petticoats, was declared by a low-dutch sonnetteer of the province, to be radiant as a sunflower, and luxuriant as a full blown cabbage. in those days, the heart of a lover could not contain more than one lady at a time; whereas the heart of a modern gallant has often room enough to accommodate half a dozen

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explanation: