Which sentence uses a metaphor to dramatize dr. king's point vividly?
a) but one hundred years later, the negro still is not free.
b) so we have come here today to dramatize a shameful condition.
c) we have also come to this hallowed spot to remind america of the fierce urgency of now.
d) this momentous decree came as a great beacon light of hope to millions of negro slaves who had been seared in the flames of withering injustice.