As manager of the project, you decide to add an agile component to be delivered by a software development company. Which statement about contracting is the most accurate of these four?

A. Buyer must ensure that Seller abides by the terms of the contract and that deliverables are of acceptable quality.

B. Seller must ensure that Buyer does not add to the contractual scope of the work that has been documented and signed by both parties.

C. Buyer and Seller must ensure that all actions are taken in the best interest of their respective companies, their owners, and their shareholders by law.

D. Buyer and Seller must ensure that both parties meet their contractual obligations and that their own legal rights are protected.