What is consideration and why is it necessary?

• A. Consideration is a promise to do something you are already legally obliged to do.
• B. Consideration is the exchange of a promise for an existing obligation.
• C. Consideration is only required for formal contracts.
• D. Consideration is a benefit or detriment bargained for as the price of the promise.

Answer: (D)

Consideration is something of value that is exchanged between the parties as the price for a promise. It shows the contract is a mutual bargain, not a gift. This value can be a promise to do something, a promise to refrain from doing something, or actual performance. It must move from the person making the promise and be something the law recognises as having value, even if it isn’t equal in monetary terms. This exchange is what makes a promise enforceable as a contract rather than a purely gratuitous promise.

The reason the correct statement fits best is that it captures this idea: there is a benefit or a detriment that has been bargained for as the price of the promise. That sense of a reciprocal exchange is what underpins the enforceability of contracts. The other options describe situations that aren’t required or correct for consideration—like promising to do something you’re already obliged to do, or that consideration is only for formal contracts—so they don’t align with how consideration actually works.