Answer:
The correct answer is concept testing.
Step-by-step explanation:
A proof of concept or PoC is an implementation, often summarized or incomplete, of a method or an idea, carried out with the purpose of verifying that the concept or theory in question is capable of being exploited in a useful way.
PoC is usually considered an important step in the process of creating a truly operational prototype. In computer security, proof of concept is used to explain how zero-day vulnerabilities can be exploited. These are vulnerabilities that their exact functioning is unknown, and therefore PdC is used to try to understand how they can be exploited in a system or equipment.