Selma Has Found That Her Central Idea Does Not Easily

Multiple Choice

Selma has found that her central idea does not easily break down into logical divisions.She has also come to the conclusion that asking why the central idea is true does not support her speech purpose.In this case,what method should Selma use to develop her main points?

A) She should use brainstorming to develop her main ideas.
B) She should use a topic directory or topoi.
C) She should support her central idea with a series of steps.
D) She should find new supporting material on the topic and start again.