Usually the reason is D. It can make us biased, I don't see any other option making sense
There are two verbs- started and running
The verb phrase is- started running
The correct answer is tone. Imagery is using vivid description while style is the personal type of narration like what words they use or grammatical constructions. Theme is the underlying idea while the voice is seen through the tone, whether it's dark and broody or joyful or anything similar.
Sorry to bother, but you sent a invalid question, we don't know how to answer this unless you state what we are writing on.