The correct option is D poorly
The part of a sentence excluding the subject is the predicate. The verb in the predicate is often modified by an adverb or its equivalent, known as the adverbial qualification in that predicate. In the given sentence, the verb "did" is modified by the adverb of manner "poorly", hence it is the adverbial qualification to the verb in this sentence and option D is correct. "She" is the subject of the verb "did" and "her work" is the object of the verb. None of them modify the verb, hence options A, B and C are incorrect.