Read this paragraph about the british empire.
(1) the british empire included colonies, dominions, and other, territories. (2) eventually, countries like portugal, spain france and the netherlands also established empires overseas. (3) the independence of the american colonies caused britain to lose some of its oldest, most populous, and most profitable colonies. (4) nevertheless, by the 1920s, the british empire covered almost a quarter of earth’s land, leaving its political legal and, cultural stamp across the world.
which sentence shows the correct way to use punctuation to separate items in a series?

in ray bradbury's short story "a sound of thunder", mr. eckels's fearfulness leads to drastic consequences for the rest of the world.

in the story, mr. eckels, who is a hunter, hires a time travel company to travel to the age of dinosaurs. although he is excited for the hunting expedition at the beginning, when they reach there and mr. eckels sees the tyrannosaurus, he feels frightened. as he is afraid of the tyrannosaurus, he steps off the path although he has been warned not to do it. by stepping off the path, the entire course of the future is affected: mr. eckart alters the future by stepping on a butterfly, which causes a new man to be elected president in the future. in that way, it is mr. eckart's fearfulness what triggers 'the butterfly effect' and what leads to drastic consequences for the rest of the world.

i think the answer would mist likely be an adjective clause, because unhappy is an adjective.

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