Which answer best corrects the inappropriate shift in person between the related sentences?

Orchestra members are responsible for their instruments. If you damage an instrument, you must fix it.

Responses

Orchestra members are responsible for their instruments. If she damages their instruments, she must fix them.
Orchestra members are responsible for their instruments. If she damages their instruments, she must fix them.

Orchestra members are responsible for their instruments. If you damage their instrument, you must fix it.
Orchestra members are responsible for their instruments. If you damage their instrument, you must fix it.

Orchestra members are responsible for their instruments. If they damage their instruments, they must fix them.
Orchestra members are responsible for their instruments. If they damage their instruments, they must fix them.

Orchestra members are responsible for their instruments. If he damages their instruments, he must fix them.

Orchestra members are responsible for their instruments. If they damage their instruments, they must fix them.