Identify the designated exit rows for the A321 aircraft.

The designated exit rows for the A321 aircraft are typically located where the emergency exits are situated to provide quick evacuation routes in case of an emergency. For the A321, the correct answer includes rows that typically correspond to the location of overwing exits or doors designated for use in emergencies.

In this case, the option referring to Row 10, 13, 26, 27 accurately identifies these exit rows, as they include rows near the emergency exits that meet regulatory and airline requirements for safe egress in emergency scenarios. Rows closer to the aircraft's exits are crucial as they enable quicker access to exits and provide a safer environment during an evacuation.

The other answers do not correctly reflect the actual exit row layout for the A321, as they reference rows that are either too far from the emergency exits or do not comply with the standard configuration. Thus, understanding the layout of emergency exits is essential for cabin safety and compliance with aviation regulations.