Tom Is Trying to Quit Smoking

Multiple Choice

Tom is trying to quit smoking.His parents, siblings, wife, children, and his doctor have all emphasized to him how important it is for him to quit.According to the theory of planned behavior, what factor is most likely to interfere with Tom's forming a firm behavioral intention to quit?

A) his specific attitude toward quitting smoking
B) his subjective norms
C) his perceived behavior control
D) his attitude accessibility