I run a business where people can become a baseball star for a day. People pay to learn how to hit a ball like the pros and even get a baseball card...

I run a business where people can become a baseball star for a day. People pay to learn how to hit a ball like the pros and even get a baseball card made. One of the stations has people "take batting practice." An attendee is claiming that the ball thrown to him missed and injured his elbow. Now he wants to sue for medical injuries. My best defense against his claim would be....

Comparative fault

Assumption of Risk

No causation

Consent