Final answer:
An order letter from a legal standpoint is the offer portion of a contract, as it outlines the terms and conditions of the proposed agreement.
Step-by-step explanation:
An order letter from a legal standpoint is the offer portion of a contract. It is a document that one party sends to another party to express their intention to enter into a contractual agreement.
Unlike the acceptance portion of a contract, which is typically communicated through an acceptance letter or action, an order letter is considered the initial offer. It outlines the terms and conditions of the proposed contract, including the quantity, price, and delivery details of the goods or services.
Therefore, in this case, the correct answer is b. the offer portion of a contract.