The ease with which the customer can place and receive their order as well as other aspects of value that the sales staff provides is

A) customer experience.
B) order visibility.
C) product availability.
D) response time.

The ease with which the customer can place and receive their order as well as other aspects of value that the sales staff provides all contribute to the overall customer experience. Therefore, option A is the correct choice. Option B (order visibility) and option C (product availability) are important factors in the overall customer experience, but they do not encompass all aspects of it. Option D (response time) is a component of the customer experience, but it does not capture the totality of it.