Why was it important for Spain to avoid a power vacuum in its transition process?

Group of answer choices

The political elites wanted to ensure they retained their political positions throughout the transition process.

The trade unions and national separatist movements would cause problems if there was a power vacuum in the transition process.

Spain$$s leaders were not able to avoid a power vacuum once the transition began, and the military had to step in to restore order.

Spain had to maintain a peaceful transition process in order to avoid open conflict with Portugal.