Why Did the Founders of the United States Opt for Representative

Why did the founders of the United States opt for representative democracy instead of the Athenian model of direct democracy?

A) They believed that citizen participation was unnecessary in governance.
B) They preferred a republic headed by a king or queen.
C) They were against a government based on the consent of the governed.
D) They thought that the rights of the minority would be ignored.
E) They opined that the masses would not be able to decide what would be right for themselves.