After Seeing Your New Neighbor Walking Very Stiffly and Primly

Multiple Choice

After seeing your new neighbor walking very stiffly and primly by your house wearing horn-rimmed glasses on a chain, a cardigan sweater, and her hair in a bun, you decide she must be a librarian. Your judgment is based on ​

A) subjective probability.
B) subjective utility.
C) the availability heuristic.
D) the representativeness heuristic.