Carla continued to search for information on cars even after she purchased one. she would go over her decision in her head and pay attention to ads that featured the car she bought. she was also noticing how many other people drove her model of car, which made her feel more confident that she made a wise decision. carla is attempting to reduce

post-purchase dissonance.

Explanation:

Post-purchase dissonance is a consequence of the disparity between someone’s decision to buy something and the evaluation he had previously made. It´s especially likely when the putchase is irrevocable, such as when buying a new car like in this example. It´s unlikely that that decision can be reversed.

Seeking new information to back her purchase is how Carla attempts to reduce dissonance.

the answer your looking for is c. : )