Van Wyck Brooks said: "For three generations the prevailing America character was compact in one type, the man of action who was also the man of God. Not until the eighteenth century did the rift appear[...] For no one has ever more fully and typically than Jonathan Edwards of the upper levels of the American mind, nor any one more typically than Franklin the infinite inflexibility of its lower levels." It suggests that ______.
A.
The Purtian thoughts were removed in the mind of the people in the eighteen century.
B.
American Purtianism is a double-faced tradition of religous idealism and common sense.
C.
The "upper levels" and "lower levels" of the American mind refer to leaders and common people respectively.
D.
The Purtian tradition is only of religious beliefs and practices.