The answer is B to ur question
It was vulnerable because most of the Rome lands were captured and so when a threat came the conquered place joins the threat.
By the Nuetrality acts. These acts made it illegal to sell arms to belligerent nations, or nations at war.
The correct answer is notation or musical notation.
Musical notation is a way of having to write down music in a
way of allowing one to play it and that systems are used and associated by in
in order to use it in writing music.
