The question discusses the powers and roles of the Gram Sabha in Scheduled Areas according to the Panchayat (Extension to the Scheduled Areas) Act, 1996.

Option 1 suggests only the first statement is correct; the Gram Sabha does have the power to prevent alienation of land in Scheduled Areas.

Option 2 suggests both first and second statements are correct; the first statement is correct, as for the second, the Act doesn`t explicitly specify Gram Sabha`s ownership of minor forest produce but does emphasize on the community`s role in conserving and managing such resources.

Option 3 suggests that statements two and three are correct. We`ve already discussed statement two. As for statement three, it`s true that the Act necessitates Gram Sabha`s recommendation for granting mineral-related leases in Scheduled Areas. Still, the power isn`t absolute, and some discretion lies with the higher authorities.

Option 4 suggests that all three statements are correct, which, as discussed, is not entirely accurate.

Hence, Option 2 - `1 and 2 only`, is the most correct amongst all.