The correct option is D For a consideration
Quid pro quo is a Latin phrase used in English to mean an exchange of goods or services, in which one transfer is contingent upon the other. In common law, quid pro quo indicates that an item or a service has been traded in return for something of value, usually when the propriety or equity of the transaction is in question. A contract must involve consideration: that is, the exchange of something of value for something else of value.