5. A dangling modifier is a A. phrase that has nothing to modify in a sentence. B. group of words in the wrong position in a sentence. C. detail that provides information about the wrong subject. D. word that's unnecessary to the rest of the sentence's meaning.
A dangling modifier is a word or phrase that modifies a word not clearly stated in the sentence. When a modifier has no target word in the sentence to describe, it is dangling. So, to conclude, go with A.