Answer:
It prohibited Japan from having an army
Explanation:
Your two best options are:
ensures that the 12 notes are given equal important.
and:
is characterized by the works of Arnold Schoenberg.
the twelve-tone technique was made by Arnold Schoenberg and is also called "serialism" and "dodecaphony." It's a method that rejects keys.
It extended the number of hours in the day when people could work and play.
