The Lockheed A-12 — a reconnaissance aircraft built for the CIA — was developed and tested at Area 51 under what project code name?

The Lockheed A-12 — a reconnaissance aircraft built for the CIA — was developed and tested at Area 51 under what project code name?

Project MK-Ultra
Project Oxcart
Project Azorian
Operation Gold
Operation Argo

The correct answer is Project Oxcart