Vince Gambles Online on the Outcomes of Football Games by Creating

Vince gambles online on the outcomes of football games by creating a fantasy team composed of real-life players from different teams and betting a given amount each week on the performances of those players. At the end of the season, the team "owner" with the most points wins the pot. This is illegal gambling activity according to

A) a federal court.
B) Congress.
C) ESPN.
D) none of the choices.