The table shows moose populations in Bullwinkle National Park, over a 35 year period. What could have been responsible for the decrease in the moose population in 1990?
A)	a disease epidemic	
B)	a decrease in hunting	
C)	a decrease in predatory animals	
D)	an increase in the amount of food
                                             
                                          
                                          
                                        
											 
			                  