Which of the following contains a vague pronoun reference?

 - According to Zoe, Willie Mays hit 660 career home runs, although Joe DiMaggio had a higher batting average. She said that he is her favorite player.
 - According to Zoe, Willie Mays hit 660 career home runs, although Joe DiMaggio had a higher batting average. She said that Mays is her favorite player.
The second answer choice contains a vague pronoun reference. The pronoun he could refer to Joe Di Maggio or Willie Mays.
The first answer choice shows a possible correction for the vague pronoun reference. He has been replaced with Mays.
According to Zoe, Willie Mays hit 660 career home runs, although Joe DiMaggio had a higher batting average. She said that Mays is her favorite player.