Which of the following is a difference between customized services and standardized services?
a. standardized services are more efficient and cost less than customized services.
b. unlike customized services, standardized services respond to individual customers' needs.
c. unlike customized services, standardized services usually command a higher price.
d. standardized services are more flexible than customized services

The correct answer is the letter a. Standardized services are more efficient and cost less than personalized services.

Explanation:

The personalized services are those provided according to the characteristics of each person, that is, we seek to individualize the service to meet customer needs. Standardized services refer to services provided equally to all customers, not seeking individualization. In this respect, standardized services are more efficient and cost less, as the individual cost of service does not change, leading to lower costs as the quantity of services sold increases.