The correct answer is (d) Veneral disease.
Under the Hindu Marriage Act, 1955, a marriage can be dissolved on the ground of cruelty, desertion for a continuous period of two years, conversion to another religion, unsoundness of mind, venereal disease, and adultery. However, venereal disease is not a ground for divorce if the disease was contracted after the marriage.
Insanity is a mental disorder that renders a person incapable of managing his or her affairs or of understanding the nature and consequences of his or her acts. Leprosy is a chronic disease that affects the skin, nerves, and mucous membranes. Epilepsy is a neurological disorder that causes seizures.
All of these conditions can be grounds for divorce under the Hindu Marriage Act, 1955, if they are of such a nature that they make it impossible for the spouses to live together. However, venereal disease is not a ground for divorce if the disease was contracted after the marriage.