Question

multiple choice question
why did the legislative assembly of france declare war on austria in 1792?
the king of austria threatened to rule france.
the king of austria had threatened to use force to restore louis xvi to full power.
austria threatened to assassinate king louis xvi and overthrow the legislative assembly.
austria had blockaded frances trade routes in europe.

Explanation:

In 1792, the Legislative Assembly of France declared war on Austria mainly due to the threat by the Austrian king to use force to reinstate Louis XVI, who was under the influence of the French Revolution - related changes. This external threat to the new - emerging revolutionary order in France led to the declaration of war.

Answer:

The king of Austria had threatened to use force to restore Louis XVI to full power.