Why Did the Framers Decide Against a Plural Executive (Two

Why did the framers decide against a plural executive (two or more presidents) or executive council (presidency-by-committee) ?

A) They were familiar with the instability caused by ancient Rome's dual-consul system and how it led to over-representation of the poor plebeian castes.
B) They feared that a plural executive would increase regional conflicts and lead to civil war.
C) They did not want the new government to have to pay salaries for multiple executives and their staffs.
D) They preferred a single executive who could act quickly without waiting to consult with co-executives.
E) They thought it would be easier for Congress to impeach and remove a single executive.