Which approach to bandwidth usage consumes all the available frequencies on a medium to transmit data?

Where does a form header appear?

A) Once, at the top of the form B) At the left of each page C) Once, at the left of the form D) At the top of each page

A(n) ______ app is written for a specific platform and can take advantage of specific features of the devices on which they are installed.

Fill in the blank(s) with the appropriate word(s).