Final answer:
Smelling the TVs has no effect on the customer's choice.
Step-by-step explanation:
Smelling the TVs does not help the customer choose which one they want.
Option A - It allows the customer to test the scent of the electronics - is incorrect because TVs do not have scents that can be tested through smell.
Option B - It helps identify the brand and model of the TV - is incorrect because smell does not provide information about the brand and model of the TV.
Option C - It has no effect on the customer's choice - is the correct answer because smell does not impact the customer's decision when choosing a TV.
Option D - It provides information about the TV's quality and performance - is incorrect because smell does not provide any information about the quality and performance of the TV.