Chloe's mother threatens to ground her for life if she comes home after curfew. Chloe knows her mother cannot follow through with that punishment and comes home late anyway. Chloe's mother should have used which tip for effective punishment?

She should have used a punishment that is really punishing.

She should have punished Chloe immediately after the bad behavior occurred.

She should have remained calm while punishing Chloe to eliminate the chance of abuse.

She should have punished Chole each and every time the bad behavior occurred.