After winning power, the National Assembly could not agree on its goals. Option B is correct.
Some representatives wanted the king to be involved in the government.
The National Assembly was a revolutionary assembly formed by the representatives of the Third Estate of the Estates-General. It existed from June 17th to July 9th in 1789. It was created amidst the turmoil of the Estates-General that Louis XVI called in 1789 in order to deal with the upcoming economic crisis in France.
