The correct option is Define how the system should respond to improper or malicious use.

Misuse cases are negative use cases that describe how an actor might attempt to use the system improperly or maliciously and they specify the desired system behavior in those scenarios. Writing them early lets designers and developers turn those scenarios into concrete requirements such as input validation, error handling, logging, alerts, and safe failure modes that the system must implement.

Misuse cases translate threats into functional responses and acceptance criteria so that testing and implementation can verify the system handles misuse in a secure and predictable way.

Identify and document recurring exploit techniques is incorrect because misuse cases focus on scenarios and the required system responses rather than producing a catalog of exploit techniques. That cataloging is a separate activity in threat intelligence and vulnerability research.

Cloud Armor is incorrect because it is a product name and not a description of the purpose of misuse cases. The question asks about the goal of writing misuse cases and not about a specific security product.

Profile potential attacker types and motivations is incorrect because profiling attackers is part of broader threat modeling and persona work. Misuse cases can be informed by attacker profiles but their primary goal is to define how the system should respond to improper or malicious actions.

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