Answer:
B. the representativeness heuristic; base rate information
Step-by-step explanation:
When people will be asked whether Albert is an engineer or lawyer, people will say that he is an engineer, because they are judging due to his appearance as he has a calculator on his hand.
People present there are using "the representativeness heuristic" to guess Albert. Because in the representativeness heuristic, it also guess due to appearance.
The people can make correct guess if they use base rate information because in "base rate information" it guesses on the probability of the information which is absent.