The word <em>wishing </em>is used as a participle in this case. Although gerunds and participles look the same, they are used in different senses - gerunds generally denote nouns, whereas participles have more of an adverbial meaning.
Answer:
I would say the effects of high-fat and low-fat diets.
Explanation:
For [A] a report on how to reduce air pollution would be expository or persuasive.
For [B] a mystery story would be entertaining and engaging.
For [C] why Great Britain was the birthplace of the industrial revolution would be a persuasive exposition, factually based.
For [D] you would write and exposition comparison to describe the benefits and detriments of the two types of diets, thus a "compare-and-contrast" essay.
Cheers.
Give me brainliest and 39 points now
Cite Other Cases That Came To Similar Conclusions.