By Studying the Data Collected from Isle Royale,ecologists Have Discovered

By studying the data collected from Isle Royale,ecologists have discovered that a large wolf population correlates to vigorous tree growth.Which statement best explains this pattern?

A) Wolves decrease the moose population,which consumes trees as its main diet.
B) When there is a large wolf population on the island,the moose swim to the mainland.The decrease in moose allows for more tree growth.
C) The remains of moose carcasses fertilize the soil,which allows for increased tree growth.
D) all of these
E) none of these