In Web-based e-mail, how are messages displayed and saved?

Which of the following is not a kind of inheritance in C++?

a. public. b. private. c. static. d. protected.

Some web pages are “invisible.” That is, no search engine will return them in a query. Why do these pages exist?

a. no other web page links to them b. they are synthetic c. they are file types browsers don’t understand d. all of the above