Which of the following best describes OPS in aviation?

OPS in aviation refers to a broad term encompassing all operational aspects of airline and aircraft operations. This includes flight planning, air traffic control procedures, safety protocols, and ground handling processes. Choosing "Operations" captures this essence as it relates to the day-to-day functioning of an airline, covering everything from pre-flight checks to in-flight procedures and post-flight activities.

The other options are more specific and do not encompass the full range of operational activities involved in aviation. "Outreach Programs for Safety" focuses narrowly on educational initiatives rather than operational practices. "Operational Procedure Standards" suggests guidelines that are certainly part of operations but does not reflect the extensive scope of OPS. "Overview of Passenger Services," while relevant to part of the airline experience, is only one facet of the broader operations within aviation. Therefore, the term "Operations" effectively summarizes the complete array of activities and responsibilities associated with airline and aircraft functioning.