which argument is most clearly based on false causality?

I would say that the answer is A.
This is because this statement is based more on someone' s opinion rather than known facts. Rival's will say almost anything to run the other into the ground.
The argument that is most clearly based on false causality is option C.
This refers to the improper use of logic to come to a faulty conclusion about something.
Hence, we can see that false causality is used in option C because the speaker is trying to blame the Mummy for its bad luck which does not have any logical backing to prove it,
Read more about false causality here:
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