Each individual piece of data in a recipient list is known as a(n) ________

Which of the following is NOT true about circles?

A) When you add someone to one of your circles, you are not automatically added to that person's circles. B) Google+ is built around the concept of "circles" of friends. C) Instead of dumping all your friends into one giant bucket, you group similar friends into several smaller buckets that Google calls circles. D) Google+ circles define two-way relationships.

Function mismatch returns:

a. The position number where the two specified sequences do not match. b. A pair containing the two elements in the specified sequences that do not match. c. A pair containing two iterators pointing to the two locations in the specified sequences that do not match. d. A bool indicating whether the two specified sequences do not match.