Griggs and Cox's Memory Retrieval Explanation of Conditional Reasoning Was

Multiple Choice

Griggs and Cox's memory retrieval explanation of conditional reasoning was supported by their finding that American subjects performed better on a concrete task if it required

A) evaluating a postal rule.
B) evaluating a drinking-age rule.
C) Both evaluating a postal and a drinking-age rule
D) Neither evaluating a postal nor a drinking-age rule