70.
The answer is: B
Explanation
The correct option is B: Agreement not enforceable by law.
According to Section 2 (g) of the Indian Contract Act, 1872, a void agreement is defined as "an agreement not enforceable by law". This means that a void agreement has no legal effect and cannot be enforced by any court of law. The parties to a void agreement do not have any rights or obligations under it.
For example, an agreement to commit a crime or an agreement to restrain marriage is void and cannot be enforced by law.