The difference between generative writing and drafting is:

a. generative writing brings up ideas, drafting develops one idea.

b. generative writing develops one idea, drafting revises the idea.

c. generative writing is more specific than drafting.

d. generative writing is done with more precision than drafting

The difference between generative writing and drafting is that a generative writing brings up ideas, drafting develops one idea. It is a simple way to differentiate between generative writing and drafting. The correct option among all the options that are given in the question is the first option or option "a".