Read this sentence from lines 32 through 34 of the speech. "The events in Birmingham and elsewhere have so increased the cries for equality that no city or State or legislative body can prudently choose to ignore them." How does this sentence help to develop a key concept in the speech?

A) It informs the public about recent events in Birmingham.

B) It explains why legislation has not yet been enacted.

C) It shows how different it will be to make any kind of change to existing laws.

D) It demonstrates the heightened need for action in preventing inequality