Answer: This is an example of a SITUATIONAL influences altering a consumer’s perception of value.
Step-by-step explanation:
Situational influences are the factors which can be changed but do impact the customer's purchasing decision at that moment to either buy or not buy at all. These influences ranges from physcal factors ,social factors and time factors and also the customers mood at that particular time.
Diane is being affected by the physcal factor, the shop is very crowded and because she hates crowded areas her mood to buy is changed and she just left and not bought anything.