Step 1: General rule under the Contract Act.
As per Section 25 of the Indian Contract Act, 1872, an agreement without consideration is void. Consideration is the essential element that makes a promise enforceable.
Step 2: Exception under Section 25(1).
However, Section 25(1) provides an exception: An agreement made without consideration is valid if:
- It is in writing,
- It is registered under the law, and
- It is made on account of natural love and affection between parties standing in near relation to each other.
Step 3: Application.
Therefore, when these conditions are met, the agreement is enforceable even though no consideration is present.
Step 4: Conclusion.
Thus, such a contract is valid, making option (c) the correct answer.