Sea otters eat sea urchins. Sea urchins eat kelp, a type of brown algae. What might be the short-term effect on the ecosystem if great numbers of sea otters were removed from this environment?
	A		increase in sea urchin population, decrease in kelp population

	B		decrease in sea urchin population, increase in kelp population

	C		increase in sea urchin population, increase in kelp population

	D		decrease in sea urchin population, decrease in kelp population