1. What is the meaning of the metaphor “the whirlwinds of revolt" in the last sentence of paragraph 7?
A. It implies that racial injustice in the past threatened the nation.
B. It implies the destruction of the nation if racial injustice is ignored.
C. It contrasts with "the bright day of justice" to imply that racial injustice leads to uprising while equality brings peace.
D. It contrasts with "the foundations of our nation" to imply that racial injustice leads to uprising while equality brings peace.