Which of the following contains a vague pronoun reference?

 - Mrs. Goodman told her friend that she needs to exercise on a regular basis and get more sleep in order to have more energy throughout the day.
 - Mrs. Goodman told her friend to exercise on a regular basis and get more sleep in order to have more energy throughout the day.
The first answer choice contains a vague pronoun reference. The pronoun she could refer to Mrs. Goodman or her friend.
Mrs. Goodman told her friend that she needs to exercise on a regular basis and get more sleep in order to have more energy throughout the day.
The second answer choice shows a possible correction for the vague pronoun reference. The text has been rewritten so that the meaning is clear.
Mrs. Goodman told her friend to exercise on a regular basis and get more sleep in order to have more energy throughout the day.