Which sentence demonstrates correct pronoun-antecedent agreement?

1.when anybody has a question about the final exam, they should raise their hands.

2.if you want to succeed in this business, he or she will need to work hard each day.

3.my laptop broke just before finals, and neither dan nor i could repair its disc drive.

4.the hockey team neglected his or her practice, and the trophy went to a rival team.

I believe the first one but think of the logic int he agreement. You could say 4 and 1 but its not multiple choice.

The first sene: alice was performing a magic trick with a wand and a small spell book that her grandfather had given her. while she was practicing she saw matt who was one of the other contestants, while she was practicing matt bumped in to her and made her say the spell wrong. all of a sudden a swoosh of sparkling purple wind picked them up and put them back on the floor. when they looked at each other alice saw herself and that’s when she realized that they had switched bodies.