Explanation:

- Consideration refers to something of value exchanged between parties in a contract.

- Option:1, Must: This implies that consideration should benefit the person making the promise. However, this is not necessarily true.

- Option:2, Need not: Consideration does not have to benefit the promise maker. It can benefit a third party or simply be a detriment to the promisee.

- Option:3, Must always: This suggests that consideration must always benefit the promisee, which is incorrect.

- Option:4, Must never: This is incorrect as consideration can sometimes benefit the promisor.