In the following question, out of the four alternatives, select the alternative which is the best substitute of the words/sentence.
A person who is fanatical and uncompromising in pursuit of their religious, political, or other ideals
Option 1) Zealot (extremist; radical; following his ideals fanatically) is the correct answer.
Mezzo = a female singer with a voice pitched between soprano and contralto.
Medial = in the middle.
Betwixt = between.