In the following question, four alternatives are given for the idiom/phrase in bold and italics in the sentence. Choose the alternative which best expresses the meaning of idiom/phrase.

I am sure they will fight tooth and nail for their rights.

A.

with all their might

B.

without any other weapon

C.

resorting to violence

D.

very cowardly

Correct answer is A

No explanation has been provided for this answer.