When Adrian's Computer Would Not Respond to Commands from the Wireless

Multiple Choice

When Adrian's computer would not respond to commands from the wireless keyboard, he tried restarting the computer, as that strategy had worked in the past. After several tries, the keyboard still did not work, so he gave up and called a computer repair service. A technician easily solved the problem: the batteries in the wireless keyboard needed to be replaced. Adrian's inability to solve the problem on his own had been hampered by his:

A) functional fixedness.
B) use of an incorrect algorithm.
C) mental set.
D) decision-making strategy.