Match the principle of persuasion with its explanation:
Reciprocity ↔️ Helping someone who has helped you
Commitment and Consistency ↔️ Being consistent with past choices
Social Proof ↔️ Following the behavior of others
Authority ↔️ Trusting and obeying authority
Liking ↔️ Being persuaded by someone liked
Scarcity ↔️ Desiring limited or rare items