Answer:
B
Step-by-step explanation:
In my point of view, For the past 20 years customers have more information and alternatives then before.
But one option is wrong, that is product quality is lower now. Products are of superior quality now a days with the introduction of information technology in industry. Products are of superior quality now.
Other options are the reason for general decline of customer satisfaction. That is customers are always price sensitive, customers have more information then before, customers demands are exceptional.
But we can't say that quality of product is lower.