N
Abc
How does an author develop central ideas to achieve a goal?

This is also known as the main idea, what is the author trying to tell you, what is the main point they're getting across? Depends on the goal, but in simplest terms, the answer is- to let the reader understand the main idea that leads up to their main achievement.

an unbound book has no cover; paris is a single man

explanation:

d) sarah's natural reaction to being accepted into college suggests that she has no other dreams.