An addenda is a modification or clarification to an agreement that can be presented before or after contract execution; its terms become part of the agreement once signed.

• A. A field order
• B. A change order
• C. An addenda is a modification or clarification to an agreement that can be presented before or after contract execution; its terms become part of the agreement when signed.
• D. A construction contract

Answer: (C)

An addendum is a document added to a contract to clarify or modify its terms. It can be prepared before or after the contract is signed, and once both parties sign it, its terms become binding as part of the agreement. This makes it distinct from other possibilities: a field order typically changes on-site work instructions without altering the contract itself; a change order formally modifies the contract’s scope, price, or schedule and usually requires formal approval; and a construction contract is the main agreement, not an added supplement. The description given matches how an addendum functions, so it’s the best choice.