The person who buys a used car with money earned from a part-time job is influenced by:
C. Social pressure.
Explanation:
1. Social pressure can play a significant role in influencing an individual's decision to purchase a used car. Friends, family, or societal norms may create an expectation or preference for buying a used car.
2. Peer influence or the desire to fit in with others who also have used cars can impact the individual's decision-making process.
3. Social pressure can create a sense of belonging or conformity, making the person more likely to choose a used car based on the influence of their social circle.
In this scenario, social pressure seems to be the most relevant factor influencing the person's choice of buying a used car.