Which of the following is not a principle of outlining as described in this chapter on organization?
a. the outline should consist of single units of information.
b. the outline should be an abstract of the speech you will deliver.
c. the outline should indicate the degree of importance of each idea to be presented.
d. the outline should contain a mixture of sentences, phrases, and words.

From the given sentences the sentence which does not fit into the option is that the outline should contain mixture of phrases, sentences and the words.  

Explanation:

When we use to write a plan which contains the symbols the content to reveal the order the margin and the importance of the subject in the presentation is called as outline.

The outline which is written must link to the purpose it must contain the abstract of the message that one must deliver. There are important symbols and signals which must be considered in an outline. They must contain the parallel form and must margin signal importance.

rain should be the answer.