Riddle

I am a rock group with four members. All dead, one was assassinated. What am I?

Choose an answer

A.The Beatles
B.Mount Vernon
C.Stonehenge
D.Mount Rushmore
Hint: It's a 2-word phrase with 13 letters, starting with "M".

Answer

Mount Rushmore

Why this is the answer

Mount Rushmore is carved into rock and depicts four U.S. presidents, all now deceased, one of whom (Lincoln) was assassinated -- a pun on "rock group."

This riddle is filed under "What Am I?" Riddles and rated Hard.