The Framers Assumed That Under the Electoral College System, Most

The Framers assumed that under the Electoral College system, most presidential elections would be decided in the House. Why did this not turn out to be the case?

A) Because most elections were not close enough to give state delegations the power to decide the outcome
B) Because the first Supreme Court ruled unconstitutional the Electoral College system of selecting a president
C) Because political parties ended up playing a major role in producing nationwide support for a slate of national candidates
D) Because the Senate quickly usurped the delegate powers of the House
E) Because the Supreme Court narrowly interpreted the powers of the legislative branch