I want to know the answer to the following question:
What was the cause of the fire that killed everyone on the first Apollo mission before launch?
All the background I'm provided with is that "On January 27, 1967, the same day the US and USSR signed the Outer Space Treaty, the crew of the first manned Apollo mission, Command Pilot Virgil "Gus" Grissom, Senior Pilot Edward H. White, and Pilot Roger Chaffee, were killed in a fire that swept through their spacecraft cabin during a ground test, less than a month before the planned February 21 launch.". Is that enough to answer the question?
Answer: no