Change these sentences with the correct pronoun

1. She set him free immediately when they found him not guilty.

2. They claim that we would still be governed by Britain if the American Colonists had lost the Revolutionary War.

3. When telephones aren't working correctly, the telephone operators provide assistance.

4. Maria was told that Jeanne had been promoted

Also, 3 and 5 are wrong! 3 is "their" because the word men refers to more than one man and 5 is also "their" because it says advisers with an S meaning that there is more than one female adviser.  

c) vampires in history and modern life.

what excerpt? i would generally think a.