?If a notebook contains sensitive material, you can __________. 

The sqrt function

a) is provided in the library header. b) returns the square of the argument c) returns the square root of the argument d) the argument type is int e) the return type is double.

A device that is located near the front-end, and allows many users to share a single front-end port, is known as

a. a line splitter b. a remote intelligent controller c. a port-sharing device d. a multiplexer