Conclusion based upon evidence is an example of inference rhetoric tone both a and b

The correct answer is A. Inference.

Conclusion based upon evidence is an example of inference. As per the oxford dictionary, inference is a conclusion reached on the basis of evidence and reasoning. This is the exact definition of what is being stated on the question itself. As an example, we can use "Researchers are entrusted with drawing inferences from the data."

"the sandy walls seemed to collapse in on themselves"

and

"the bloodshot waters seemed to have no bottom"