Read the excerpt from "Lessons of Dr. Martin Luther King, Jr."

In our life and death struggle for justice we have turned to the court of last resort: the American people. And the people are ruling in our favor.

As a result, grape sales keep falling. We have witnessed truckloads of grapes being dumped because no one would stop to buy them. As demand drops, so do prices and profits. The growers are under tremendous economic pressure.

We are winning, but there is still much hard work ahead of us. I hope that you will join our struggle.

Which phrase from Chavez’s speech uses details to support his argument that the grape boycott is working?

a."In our life and death struggle for justice"
b."truckloads of grapes being dumped"
c."there is still much hard work ahead of us"
d."I hope that you will join our struggle"