Question 1
Why does Lando Calrissian betray Han Solo on Cloud City?
- AHe wants the Millennium Falcon for himself
- BJabba the Hutt hired him as a spy
- CDarth Vader arrived first and forced his cooperationCorrect
- DHe is secretly an Imperial officer
Darth Vader arrived at Cloud City before Han and forced Lando to cooperate by threatening the city and its inhabitants.
As seen in: The Empire Strikes Back(Film)
Wookieepedia: The Empire Strikes Back