Which sentence contains a dangling modifier?

a. while playing my electric guitar, the amplifier went dead.

b. while i was watching my favorite tv show, the telephone rang.

c. whistling a happy tune, marti walked slowly to school.

d. after studying late at night, latise felt tired the next morning.

This one: "A. While playing my electric guitar, the amplifier went dead"

It seems to suggest that the amplifier was playing the guitar, which, of course is absurd.

The sentence could be changed in this way: "While I was playing my electric guitar, the amplifier went dead". Further, I think it is better use "when" instead of "while", but the important thing here is to note the dangling modifier.

U