The correct answer is B. Static.
Static analysis examines source code, bytecode, or application binaries without executing the application. It is commonly used to identify insecure coding practices, vulnerabilities, hardcoded secrets, weak cryptographic implementations, input validation issues, and misconfigurations before the application is deployed or run.
This aligns with CompTIA Security+ SY0-701 topics involving vulnerability discovery, secure application development, and security testing methods.
Why the other options are incorrect:
A). Dynamic
Dynamic analysis tests an application while it is running. It is used to observe runtime behavior, authentication issues, session handling problems, and active vulnerabilities during execution.
C). Gap
A gap analysis compares the current state against a desired standard, framework, or requirement. It is not specifically the review of source code.
D). Impact
Impact analysis evaluates the effect of a risk, change, incident, or vulnerability on the organization. It does not describe reviewing source code.
Therefore, reviewing source code without running the application is static analysis.

The least privilege principle states that users and processes should only have the minimum level of access required to perform their tasks. This helps to prevent unauthorized or unnecessary actions that could compromise security. In this case, the patch transfer might be failing because the user or process does not have the appropriate permissions to access the critical system or the network resources needed for the transfer. Applying the least privilege principle can help to avoid this issue by granting the user or process the necessary access rights for the patching activity. References: CompTIA Security+ Study Guide: Exam SY0-
701, 9th Edition, page 931

Social engineering is the practice of manipulating people into performing actions or divulging confidential information, often by impersonating someone else or creating a sense of urgency or trust. The suspicious caller in this scenario was trying to use social engineering to trick the user into giving away credit card information by pretending to be the CFO and asking for a payment. The user recognized this as a potential scam and reported it to the IT help desk. The other topics are not relevant to this situation. References: CompTIA Security+ Study Guide: Exam SY0-701, 9th Edition, page 19 1