Answer:
c. snake
Explanation:
A snake refers to a cold-blooded living organism that does not have leg such as cobra, python, anaconda, viper etc.
Ophiology can be defined as the study of snake.
Basically, ophiology is a branch of a field in science known as herpetology, which deals typically with the study of amphibians and reptiles such as lizards, frogs, snakes, crocodile, alligators etc.
Therefore, an individual who is an expert or professional in the study of snakes is generally referred to as an ophiologist.