What is the order of these events in the Pacific?
1. Kelp populations declined.
2 Sea otter populations declined
3 Sea urchin populations increased.
4 Sea otters were hunted for their pelis.
1.3. 2 then 4
(B)
2, 1.4 then 3
4, 2, 3 then 1
(D)
4, 3, 1 then 2