Darrin is writing a speech to deliver to his class for Earth Day. Read the following excerpt. (1) “I don’t use that much water,” I’ve heard people say. Well, actually you do. (2) Everyone needs to take steps to limit their water consumption. (3) Turn off the tap as you brush your teeth or wash your face. (4) And fix that leaky faucet! (5) At a rate of one drop per second, you’re wasting 2,700 gallons per year.

How is sentence 5 related to Darrin’s position on water conservation?

A
It explains Darrin’s position that most people won’t take measures to limit their water usage.

B
It contradicts Darrin’s position in admitting that one drop per second is not very much water.

C
It contrasts Darrin’s position with those of his classmates, who are against water conservation.

D
It reinforces Darrin’s position by providing evidence to disprove the idea that people don’t waste water.