Explanation:

- Option 1: Death bed transaction

*Refers to acts like gift or property transfer by a person on their deathbed, often needing special legal requirements.*

- Option 2: Nature of Marriage

*Deals with the legal understanding of marriage—whether it's a contract, sacrament, or something else.*

- Option 3: Acknowledgment

*In Muslim law, acknowledgment often means recognizing or admitting legal status (like paternity).*

- Option 4: Hiba

*Hiba means "gift" in Muslim law. It involves the transfer of property without consideration, and certain rules must be followed.*

- Anis Begum vs. Mohammad Istafa, 1933 mainly discussed the rules and essentials regarding “Hiba”—the Muslim law gift. The court examined whether a valid gift was made.

Option:4 – Hiba is the correct answer.