What was one of the japans primary goals during world war 1

letter D is the right answer, Japans number one goal during world war 1 was expansion. Japan only joined the allies during world war 1 because it thought it would gain extra territory once the allies won. When this didn't happen, it began to attack and conquer Munchuria and China.

To protect its territory from Chinese aggression

map scale refers to the relationship (or ratio) between distance on a map and the corresponding distance on the ground. for example, on a 1: 100000 scale map, 1cm on the map equals 1km on the ground.