An axial compressor stage is represented by which of the following components and in which order?

Correct Answer: Option A — One set of rotating blades, one set of stationary vanes.

Each stage of an axial compressor consists of a rotor row followed by a stator row. The rotor blades perform work on the air to increase its velocity, and the subsequent stator vanes redirect the airflow and convert kinetic energy into static pressure, completing the compression process.