Cybersecurity controls are the safeguards an organization implements to reduce risk to an acceptable level. In standard risk-management language, a control is not limited to a one-time review; it is an ongoing capability that is designed, implemented, and operated to prevent, detect, or correct unwanted events. That capability is typically delivered throughtechnology solutions(technical controls) andprocess solutions(administrative or procedural controls), which is why option B is correct.

Technology controls include items like firewalls, endpoint protection, encryption, multifactor authentication, logging and monitoring, vulnerability scanning, secure configuration baselines, and data-loss prevention. These controls directly enforce security requirements through system behavior and automation, helping reduce the likelihood or impact of threats.

Process controls include policies, standards, access approval workflows, segregation of duties, change management, secure development practices, incident response playbooks, training, and periodic access recertification. These ensure people consistently perform security-critical tasks correctly and create accountability and repeatability.

Options C and D describe possible outcomes or limitations (controls may not fully eliminate risk and may only mitigate part of it), but they are not what controlsinclude. Option A is incorrect because “only initial reviews” are insufficient; reviews can be a component of a control, but effective controls require sustained operation, evidence, and reassessment as systems, threats, and business needs change.