Which of the following is NOT an example of an advancement of service technology?

A. Electronic check-in/check-out at hotels

B. Retinal security scanners at airports

C. Automatic teller machines (ATMs) at banks

D. All of the above are examples of advancements of service technology

The answer is "Option D"

Explanation:

This technology applies to the use of software design services in which the service was an independent agnostic system element operating in a software environment. These tools allow the company to give its clients solutions and enhance operational productivity, and incorrect choices can be described as follows:

In option A, It does not use electronic check-in and out at hotels. In option B, It isn't correct because it is the protection of retinal. In option C, It is a device, which is used in customers of a financial institution, that's why it is wrong.