Which one of the following sentences would most logically complete the last paragraph of the passage?

Michelle on January 22, 2019

Thanks for your question @jayw

This passage doesn't discuss financial resources, so E would make for an abrupt ending to the passage.

C is a more natural ending to this passage because the author is proposing controlled burns every 15 to 20 years. It makes sense that this method would take a few years to achieve its intended effects.