Match the purpose of custodial sentencing with its description and an example:
1️⃣ Retribution: Punishing offenders proportionally to their crimes; Sentencing a murderer to life imprisonment
2️⃣ Incapacitation: Removing offenders from society to prevent further crime; Jailing a serial thief to protect the community
3️⃣ Deterrence: Discouraging potential criminals through harsh sentences; Increasing the penalty for drunk driving
4️⃣ Rehabilitation: Helping offenders reform and rejoin society; Providing education and therapy in prison