Q.Which of these parties cannot demand performance of promise ?

A stranger to the contract cannot demand performance of a promise, option (c).

Under the Indian Contract Act, 1872, performance of a promise can normally be demanded only by the promisee or a person legally standing in the promisee's place. This flows from the doctrine of privity of contract — only parties to a contract acquire rights and obligations under it.

Therefore:

• The promisee can demand performance. …