Question

When the estates general first met, what was the main controversy?

(French Revolution and Napoleon)

Answer 1

The correct answer should be
The debate about whether the three estates would vote together or each vote separately

That is because the three layers of society, or the three estates, were treated as independent entities of each other, so when it came to voting, the debate was whether all three should vote independently of each other, or should it just be a free for all and everyone votes.