MITIGATE:SEVERE :: QUALIFY : GENERAL
What is the analogy relationship here?
Mitigate is to make less severe. Is qualify lessening generality or something?
Tamper means adjust but has a negative connotation to it. So ans is misrepresent :communictate
Misrepresent means communicate with the intention to deceive.
venture means "to offer at the risk of rebuff, rejection, or censure"
For eg, "venture an opinion", means offer an eg at the risk of rebuff or rejection.
So ans C fits well.