Answer:
The participial phrase which adds a sense of movement to the sentence "The dancer anticipated a perfect performance" is B: Thinking about how hard she'd worked
Thinking about how hard she'd worked, the dancer anticipated a perfect performance
Step-by-step explanation:
Participle is a form of verb which modifies noun or noun phrase. It ends with 'ing' if in present tense and ends with 'ed' if the sentence is in past tense. Participle phrase would contain a participle with its modifiers or objects.
In the given sentence, 'anticipated' is the participle and the participle phrase is 'dancer anticipated'. Anticipate means to plan one's action because of his/her expectations. The dancer thought about how she worked hard and gave her perfect performance. Thus, the correct option for participle phrase here is Option B.