Idk I think it could be C
The adverb that modified the verb (finished) is quickly.
Adverbs answer the question: HOW IS THE ACTION DONE?
So,
How did John finish his work?
He finished it quickly.
Answer:
secA/cosecA = tanA
Explanation:
secA/cosecA = tan A is the correct identity
A noun phrase denoting a person or thing that is the recipient of the action of a transitive verb, for example the dog in Jimmy fed the dog.
Hope this helps!