Which of the following contains a vague pronoun reference?

 - Katie and her husband met Mia for lunch at a small café around the block from her office.
 - Katie and her husband met Mia for lunch at a small café around the block from Mia's office.
The second answer choice contains a vague pronoun reference. The pronoun her could refer to Katie or Mia.
The first answer choice shows a possible correction for the vague pronoun reference. Her has been replaced with Mia's.
Katie and her husband met Mia for lunch at a small café around the block from Mia's office.