What is the main difference between A2 sub-cat. and A3 sub-cat.?

Question

Question EASA Drone Quiz - Flight performance and planning

QuizVDS · Accepted Answer

Persons directly involved in operations, or informed 'outsiders' in a detailed manner of the dangers and performance of the mission

QuizVDS · Answer

They are only the Pilot and the possible Observer

QuizVDS · Answer

The electronic circuits of the UAV

QuizVDS · Answer

The pilot's view

Id 245 - EASA Drone Quiz – Drone Pilot Certification - What is the main difference between A2 sub-cat. and A3 sub-cat.?