In an activity diagram, the merge symbol has the same shape as what other symbol?

The _________ transfer encoding, also known as radix-64 encoding, is a common one for encoding arbitrary binary data in such a way as to be invulnerable to the processing by mail-transport programs.

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

QuickTime software comes standard with the ____ operating system.

A. Windows B. Apple C. Linux D. Unix