Which of the following words best replaces a blush as it is used in the following passage?

The bright intellect of the South, clearly saw, that without this principle for a corner stone, he had no foundation for his argument. He assumes it therefore without a blush, as Hobbes assumed it to prove that government and despotism are synonymous words.

Answer choices for the above question

A. anger
B. embarrassment
C. preparation
D. frigidity​