Which of the following promises is supported by legally sufficient consideration and will be enforceable?
• A person’s promise to pay a real estate agent $1,000 in return for the real estate agent’s earlier act of not changing commission for selling the person’s house
• A parent’s promise to pay one child $500 because that child is not as wealthy as the child’s sibling
• A promise to pay the police $250 to catch a thief
• A promise to pay a minor $400 to paint a garage