All of the following cast doubt on the conclusion of the argument EXCEPT? A. The recent ban only extends to within one hundred miles of Iceland, though killer whales are plentiful along the shores of Greenland, which fall outside this range. B. The incoming prime minister of Canada, who is more conservative, is planning on lifting the ban on hunting killer whales off the coast of Canada. C. In-park killer whale births have become increasingly common, especially in those wildlife parks that harbor a large number of killer whales. D. Some wildlife parks are involved in the illegal trade of killer whales. E. It is nearly impossible to catch killer whales in deep waters, so hunters typically rely on luring killer whales into coves.