The best answer is A. Sandboxing environment.

A USB drive associated with a ransomware attack should be treated as highly suspicious. To securely retrieve files without risking infection of production systems, the analyst should use a sandboxing environment. A sandbox provides an isolated environment where files can be opened, examined, and extracted while containing any malicious behavior.

This is the safest option because ransomware may execute automatically or contain hidden malicious payloads.

Why the other options are incorrect:

B. Intrusion prevention systemAn IPS monitors and blocks malicious network traffic. It does not provide a secure environment for opening files from a suspicious USB drive.

C. File integrity management toolFile integrity monitoring detects changes to files, but it is not designed to safely retrieve files from potentially malicious media.

D. Static code analysis toolStatic code analysis is used to inspect source code for vulnerabilities. It is not intended for safely interacting with suspicious files on removable media.

From the SY0-701 perspective, suspicious files and removable media should be handled in an isolated sandbox to reduce the risk of malware execution. Therefore, A is the correct answer.