Psych Jenna walks into her science class laboratory, and she immediately feels queasy. Today is the day her class is dissecting frogs, and she is sickened by the smell of the formaldehyde. However, after an hour Jenna is no longer sickened because of

habituation

Explanation:

Habituation -

It refers to the process of getting habituated , is known as habituation .

It is the reduction is the stimulus after prolonged use or access , is referred to as habituation .  

It is the tendency where the living organism gets prone to some specific action , smell , activity or object , after some considerable period of time , is referred to as habituation .

Hence , from the given scenario of the question ,

The correct answer is habituation .

answer; disconfirm the catharsis theory;