Section: Verbal Reasoning

3) Idealistic by nature, James disapproved of the ___ materialism of his classmates who boorishly considered only money and possessions worthy of respect.

1. crass
2. altruistic
3. ethical
4. cumbersome
5. credulous

People who consider only material goods worth their respect are guilty of crass (unrefined, grossly stupid) materialism. Note that the phrase "crass materialism" is a cliché, a commonplace expression.