Which sentence contains an example of an oxymoron?

a. the leaves danced about in tree, happy the fall wind had set
them free.

b. she ran up the steps like a gazelle and disappeared into the house.

c. there was a sharp softness to the accumulating thunderclouds.

d. her summer vacation went by in the blink of an eye.

C.There was a sharp softness to the accumulating thunderclouds.

Explanation:

An oxymoron is when two words are contradictory to each other. Sharp and softness is the oxymoron in the sentence.

the correct answer is b. in order to explain a point clearly in an essay, it is always better to include a clear example of your ideas. including an scenario in which a family is affected by consumerism will support your argument as well as supporting details, such as quotations from experts and statistics. option a could be correct, but statistics and quotations are supporting ideas rather than clear explanations. choices c and d are simply inadequate. they do not add information about the effects of consumerism, rather they are strategies for engaging the reader