Anastasia Is Building a Sand Castle at the Beach

Multiple Choice

Anastasia is building a sand castle at the beach. She is frustrated by the fact that the water keeps washing it away. She has rebuilt the castle five times already, each one a little further up from the waves. Her brother Christopher walks up, sees the problem, and proceeds to dig a channel for the water that bypasses her latest sand castle completely. Which cognitive block was Anastasia demonstrating?

A) Functional fixedness
B) Convergent thinking
C) Mental set
D) Thin slicing