Which of the Following Best Supports the Research on Attitude-Behavior

Which of the following best supports the research on attitude-behavior consistency?

A) Tom's mother died of breast cancer, yet Tom never donates to cancer charities.
B) Derek quickly responds whenever asked about his political attitudes and votes in every election.
C) Harold has a positive general attitude toward the environment and always recycles.
D) Even though helping the homeless is not personally relevant to him, John volunteers at a shelter once a month.