Homomorphic encryption allows data to be encrypted and manipulated without needing to decrypt it first. This cryptographic technique would allow the financial institution to store customer data securely in the cloud while still permitting operations like searching and calculations to be performed on the encrypted data. This ensures that the cloud service provider cannot decipher the sensitive data, meeting the institution's security requirements.
Reference =
CompTIA Security+ SY0-701 Course Content: Domain 03 Security Architecture.
CompTIA Security+ SY0-601 Study Guide: Chapter on Cryptographic Techniques.

Containmentis the phase wherean organization attempts to minimize the damage caused by a security incident. This may involve isolating affected systems, blocking malicious traffic, or temporarily shutting down compromised services to prevent further impact.
* Recovery (A)focuses on restoring normal operations after an incident.
* Preparation (C)involves planning and readiness before an incident occurs.
* Analysis (D)involvesinvestigating the root causeand assessing the damage.

AnEndpoint Detection and Response (EDR)solution is designed tomonitor, detect, and respond to security incidents on endpoints (such as workstations and servers). Itcollects and analyzes data, detecting suspicious activity and forwarding relevant information for further investigation.
Network Access Control (NAC) (A)enforces network access policies but does not analyze security threats on hosts.
Intrusion Prevention Systems (IPS) (B)detect and block network threats but do not provide deep endpoint analytics.
Security Information and Event Management (SIEM) (C)aggregates logs and provides security analytics but lacks direct endpoint detection and response capabilities.
EDR is the best choicefor analyzing and responding to endpoint security incidents.