Identify the missing word(s) in the following sentence:Site reliability engineering is a _________ approach to...

Comprehensive and Detailed Explanation From Exact Extract:

Google’s SRE definition is explicit: “Site Reliability Engineering is what happens when you ask a software engineer to design an operations team.” (SRE Book – Introduction). This clearly defines SRE as a software engineering approach applied to operational problems. The goal is to use software techniques—automation, coding, testing, version control, CI/CD, observability—to improve reliability and reduce toil. The book emphasizes: “SRE applies software engineering to operations work.” (SRE Book – What Is SRE?).

Option C is the only answer fully aligned with the official definition.

Options A, B, and D do not correspond to the SRE definition provided by Google.

Thus, the correct missing phrase is software engineering.