PART A: How does the author organize information about the emerald ash borer? A by providing general facts followed by a statement of the problem B by defining the problem in scientific terms followed by an argument for proposed action C by presenting a problem followed by a suggested solution D by listing facts in order of importance followed by causes of a problem

A. by providing general facts followed by a statement of the problem

Explanation:

The author organizes information about emerald ash borer in a very well structured and logical way, which allows readers to optimize their reading, reaching a quick and efficient understanding of the subject being addressed in the text.

For this, the author establishes a logical order, where he starts narrating general information on the topic, creating a knowledge base for the reader to understand the problem statement that is exposed soon after.

quite an interesting way to teach topic sentences, because the answer to this question is the best definition of a topic sentence that one can present, it is as if answering the questions taught you how to do it, this is some real teaching, it is terribly well-done.

the topic sentence in this paragraph is:

topic sentences writers stay on track and keep a paragraph from becoming an aimless collection of sentences about an idea.

which incidentally tells you what a topic sentence should be.

i think the answer is c