问题详情

Olga, 32 years old, comes from Moscow, Russia. She is a historian and would like to find a pen pal who is interested in discussing the history of Russia before the communist regime. She is not interested in comparing different political systems. The best pen pal for Olga would be ______.
A．Helga
B．Mary
C．Pietro
D．Kim Lee请帮忙给出正确答案和分析，谢谢！