Final answer:
It's true that an offer plan can include a completion date, which outlines when the terms of the offer should be fulfilled or the service delivered.
Step-by-step explanation:
An "offer plan" in a business context often refers to a proposal or an agreement that outlines the terms and conditions of a deal or transaction. One of the critical elements that can be included in such a plan is the completion date, which specifies when the terms of the offer need to be fulfilled or when the product or service is to be delivered.
Therefore, it is true that an offer plan can include a completion date. However, it's important to note that the contents of an offer plan can vary depending on the type of business, the nature of the transaction, and the agreement between the parties involved.