Question

A dangling modifier is a

A. group of words in the wrong position in a sentence.
  B. detail that provides information about the wrong subject.
  C. phrase that has nothing to modify in a sentence.
  D. word that's unnecessary to the rest of the sentence's meaning.

Answer 1

A dangling modifier is a word or phrase that modifies a sentence without stating it. So I would have to say the answer is
C. A phrase that has nothing to modify a sentence