The answer is increased in urban growth because cities keep growing
I’m gonna go with answer D.c because the ocean had very deep trenches
Answer:
Monarch butterfly migration is the phenomenon, mainly across North America, where the subspecies Danaus plexippus plexippus migrates each summer and autumn to and from overwintering sites on the West Coast of California or mountainous sites in Central Mexico. Other subspecies perform minor migrations or none at all. This massive movement of butterflies has been called "one of the most spectacular natural phenomena in the world".[1]
Is a source of international conflict because, as it falls downwind, the area in which it accumulated is not necessarily the area that will be damaged. So countries must work together to reduce the problem because they are damaging one another's environments.