Final answer:
The correct answer is NDA (Non-Disclosure Agreement). It is a legally binding contract that protects confidential information.
Step-by-step explanation:
The correct answer is c. NDA (Non-Disclosure Agreement). A Non-Disclosure Agreement (NDA) is a legally binding contract that is signed between two parties, typically a vendor and a client, to protect confidential information. The NDA requires the vendor to keep any confidential information learned during the engagement private and prohibits them from disclosing it to third parties without the client's consent.
For example, if a company hires a software development vendor to build a new product, they may require the vendor to sign an NDA to protect the details of the product's design, code, and any other proprietary information.