Miguel lets Tania use his personal motorcycle. Tania decides she wants to try jumping from the roof of one building to the roof of another. Sadly, Tania isn't very good at using the motorcycle, and her stunt fails. She breaks all of the bones in her body and sues Miguel for her injuries based on a theory of strict product liability. She claims the motorcycle should have had more power to get her across the gap. Which of the following isnota defense Miguel can raise?

Comparative negligence

Truth

Assumption of risk

Miguel isn't in the motorcycle selling business