Which of the following dynamic pseudo-classes means the link has not yet been visited by a user??

Serios is a software development firm in Canada. It creates an application to guide the development of Maglev trains in Mexico City and outsources the design and maintenance of the application to Ieinsta Inc. in Mexico City. The contract between the firms requires Ieinsta Inc. to use only the software provided by Serios. Ieinsta Inc. has to access the software remotely as a Web-based service. Identify the type of service provided by Serios in this scenario.

a. Infrastructure as a service b. Software deployment service c. Platform as a service d. Software as a service

Under what circumstances would the body of a pretest loop never be executed?

What will be an ideal response?