Celia, Who Is a College Student, Has Always Thought of Herself

Celia, who is a college student, has always thought of herself as an environmental activist.Recently, she "inherited" a gas-guzzling car from her parents, which she has been driving around campus.To reduce the cognitive dissonance that she feels from these clashing images of herself, the environmental activist and the gas-guzzling car owner, she might say that "cars are not really a major environmental problem," which illustrates the strategy of

A) changing her attitude.
B) changing her behavior.
C) adding consonant thoughts.
D) reducing the amount of her perceived choice.