Upon Andropovs death, the Soviet government issued a medical report______ all the rumors c

Upon Andropovs death, the Soviet government issued a medical report______ all the rumors confirming that he had endured a long battle with diabetes.

A．to cover up

B．to do away with

C．to clear up

D．to put to rest

请帮忙给出正确答案和分析，谢谢！