Question id 20 - Aircraft General Knowledge - Airframe, Systems, Powerplant - ATPL - Airline Transport Pilot license

Spoiler Moves On The Down-going Wing Only.
Spoilers move up on the down-going wing and down on the up-going wing.
Spoiler Moves On The Up-going Wing Only.
Spoilers Move Up On The Down-going Wing And Up On Up-going Wing.