10. what is the purpose of the introduction in an essay? a. to establish the main idea of the essay. b. to focus on current statistics c. to explain the main idea to the reader d. to highlight the most important concepts

A. To establish the main idea of the essay.

Explanation:

The purpose of the introduction in an essay is to meet the reader with the main idea. In the introduction, the author sets the main idea of the essay so readers can see in which direction is the essay going.

The introduction includes the main idea, how it will be developed ( but in the introduction there is no explaining the whole process of the main idea and all the ways of development) and the basic background information which is helpful to the reader to meet up with the topic.

the answer should be b.

explanation:

it should be b because she researched before writing so it would be in past tense. "the author researches her subject before she had written the first draft.