Answer:I would say. A
Explanation:
I really don’t understand taking a guess
Narrative and descriptive will be the best structural organization
Your answer should be WHO.
Think of it like this: You wouldn't say "The boy it (a variant of 'which')", because it simply just sounds odd. Instead, you're wired to think "The boy, he (an unknown name, so it would be 'who')".
What to produce
One in which marginal coast are greater than marginal benefits
