How does Johnson use a reference to Ralph Waldo Emerson in his second paragraph to develop his argument?

A
He states that his vision for the future agrees with Emerson’s view of the world, and he hopes this convinces listeners to agree with him.
B
He speculates that if Emerson were alive, he would enthusiastically support Johnson’s vision of a “Great Society.”
C
He claims to agree with Emerson’s idea that to achieve something great, one must have conviction.
D
He praises Emerson as an admired figure of the past, and he calls on his audience to become worthy of such admiration.