Final answer:
The correct answer is A. Sandbox. A sandbox is a tool that isolates an attacker, allowing them to be observed while preventing damage to production systems.
Step-by-step explanation:
The correct answer is A. Sandbox. A sandbox is a tool that is used to isolate an attacker so that they cannot cause damage to production systems, while still allowing cyber analysts to observe their actions. It provides an environment where the attacker's behavior can be monitored and analyzed, without impacting the security of the production systems.