Default programs are associated with which of the following?

________ regroups related pieces of files together on the hard drive, thereby improving operating system efficiency

A) System Restore B) System Tools C) Disk Defragmenter D) Task Manager

What does the following C++ expression evaluate to? 6 - 6 / 3 + 3

A) 0 B) 3 C) 5 D) 7 E) None of the above