How many rows are checked during the No2 cabin secure checks?

The correct answer, which indicates that rows 24 to 35 are checked during the No2 cabin secure checks, aligns with the operational procedures of Ryanair regarding cabin safety protocols. During these checks, crew members focus on ensuring that the cabin environment is safe and secure for all passengers. Rows 24 to 35 typically represent an area of the aircraft that is critical for passenger placement and that could potentially be influenced by safety concerns.

This specific range is chosen partly due to the configuration of the aircraft and the flow of the emergency procedures. Ensuring that these rows are checked helps to maintain safety standards and readiness in case any irregularities arise. It reflects a systematic approach to verifying that safety regulations are met throughout the aircraft.

The other options cover different ranges of rows either above or below the specified range for No2 cabin secure checks, which do not align with the established protocol for safety checks within the context of Ryanair's operational guidelines.