Answer:
The factor that is most likely to interfere with Carlos's intention to quit junk food is his attitude towards the behavior.
Step-by-step explanation:
According to the theory of planned behavior, there are three main factors that influence an individual's intention to engage in a particular behavior: attitudes, subjective norms, and perceived behavioral control.
Attitudes refer to an individual's positive or negative evaluation of the behavior in question. In Carlos's case, if he has a negative attitude towards quitting junk food (for example, if he believes it will be too difficult or unpleasant), this may interfere with his intention to do so.
Subjective norms refer to the perceived social pressure to engage in a particular behavior. In Carlos's case, if he perceives strong social pressure from his wife, friends, and parents to quit junk food, this may support his intention to do so.
Perceived behavioral control refers to an individual's belief in their ability to control their behavior. If Carlos believes that he has the necessary skills, resources, and opportunities to quit junk food, this may increase his intention to do so. On the other hand, if he perceives that he lacks the necessary resources or that there are too many obstacles in his way, this may interfere with his intention.
In summary, the factor that is most likely to interfere with Carlos's intention to quit junk food is his attitude towards the behavior. If he has a negative attitude, it may be more difficult for him to follow through with his intention, even if he is facing strong social pressure to do so and believes that he has the necessary resources and control to do so.