What characterizes an "emergency exit row" on an aircraft?

An emergency exit row on an aircraft is characterized by being situated next to an emergency exit and is designed to allow quick evacuation in case of an emergency. This proximity to the exit means that the passengers seated in these rows have specific responsibilities, including potentially assisting crew members in guiding other passengers to safety during an evacuation. These responsibilities may involve providing assistance, ensuring that the exit is clear, and following crew instructions. Thus, the correct answer emphasizes the role and responsibilities that passengers in these rows hold, which is critical for effective emergency management during in-flight incidents. The other options do not accurately describe the emergency exit row's characteristics and roles in passenger safety protocols.