In Designing Service Systems, as You Go from Mail Contact

Multiple Choice

In designing service systems, as you go from mail contact to phone contact to face-to-face total customization, which of the following is most appropriate?

A) Sales opportunity decreases while degree of customer/server contact increases.
B) Sales opportunity decreases while degree of customer/server contact decreases.
C) Sales opportunity increases while degree of customer/server contact decreases.
D) Sales opportunity increases while degree of customer/server contact increases.
E) None of these choices are correct.