Which of the following spendthrift clauses is enforceable?

• A spendthrift clause that protects the beneficiary from being subject to paying child support payments.

• A spendthrift clause that protects the beneficiary from creditors who have furnished necessaries.

• A settlor uses a spendthrift clause in a trust that lists him as the beneficiary.

• A settlor uses a spendthrift clause to prevent his grandson from foolishly spending his assets.