The stimulus doesn’t tell us about what any rehabilitationist theory holds. We know that rehab. theories might be acceptable, but we don’t know anything about the specific content of rehab. theories.

The stimulus doesn’t tell us what is required to reform a repeat offender. We know rehab. theories want to reform the offender. But we don’t know what’s required to reform an offender.

The stimulus tells us what’s necessary for being an acceptable theory — it must be rehab. or retributivist. But we don’t know what is sufficient to make something acceptable.

The stimulus tells us what’s necessary for being an acceptable theory — it must be rehab. or retributivist. But we don’t know what is sufficient to make something acceptable.

Must be true, because we know that retributivist theories that hold criminals should receive longer sentences for repeat offenses are unacceptable. So if a theory that holds criminals should receive longer sentences for repeat offenses could possibly be acceptable, then it must be a rehab. theory.