Using commas

While they watched the match, Anita clapped, cheered, and kept score.

Antonio asked her name, signed a tennis ball, and shook her head.

Because they enjoyed the match so much, Travis, Nick, and Anita made plans to come back for the final match the next day.

3 answers

Correct ... all of them! =)
While they watched the match, Anita clapped, cheered, and kept score.

Antonio asked her name, signed a tennis ball, and shook her head.

Because they enjoyed the match so much, Travis, Nick, and Anita made plans to come back for the final match the next day.
The Vixens signed autographs after the game, and Estevan was the first in line.