Explanation:

- Option 1: Occasionally

This is not accurate. The law does not depend on frequency but on participation and role in the crime.

- Option 2: As the case demands

This option is vague. Prosecution depends on specific circumstances and legal provisions, not just case-by-case discretion.

- Option 3: Not at all

According to the Indian Penal Code (Section 376D), a woman cannot be prosecuted as a principal offender for the act of rape, as only a man can commit rape by law's definition. However, a woman can be prosecuted if she is a participant, abettor, or conspirator in a gang rape case.

- Option 4: When she is a party to it

Correct Answer

If a woman assists, encourages, or helps in committing gang rape, she can be prosecuted under abetment laws. She may not be charged as the main offender in rape but can be prosecuted for her role in the crime.