When used as evidence, what does an effective example do? a. it makes concrete ideas more figurative. b. it makes concrete ideas more abstract. c. it makes abstractions less didactic. d. it makes abstract ideas more concrete?

Examples are used to "exemplify" a situation. Hence, we take an abstract theory and we make it more approachable by showcasing some details. Hence, we have that the example makes abstract idea more concrete. The first 2 choices are wrong since they state the opposite. The 3rd choice is rather irrelevant, examples can make it more or less didactic. Hence, the 4th choice is correct.

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