Final answer:
The term 'to erate' does not appear to be a recognized verb in English and thus the question cannot be definitively answered without clarification. If related to 'eradicate,' none of the provided options are correct; if a typo for 'contaminate,' then option b) Contaminate would match.
Step-by-step explanation:
The term 'to erate' is not a recognized verb in the English language. The question might have a typo or be asking about a different term. If we assume the word in question was meant to be 'eradicate', this does not match any of the options provided as 'eradicate' means to destroy completely or put an end to something. However, if the intended word is 'contaminate', it would match with option b) Contaminate which means to make something impure or harmful by adding something dirty or a poisonous substance. The word 'expurgate', which corresponds to option c) Expurgate, means to remove matter thought to be objectionable or unsuitable. Without the correct term, it is challenging to provide a definitive answer. Therefore, the student is advised to clarify the term 'to erate' to ensure the correct meaning is covered in the response.