问题详情

The author mentions Kleck, Lott, and Bellesiles mainly to ______.
A．illustrate the influence they have on the issue of gun control
B．refute the claim that private ownership of firearms will deter violent crimes
C．support the thesis that gun ownership leads to more violence
D．demonstrate why research methods should be improved in the study of the gun ownership history此题为多项选择题。请帮忙给出正确答案和分析，谢谢！