(单选题)5: C#中,新建一个字符串变量str,并将字符串"Tom's_Living_Room"保存到串中,应该()

A: string str="Tom\'s_Living_Room";

B: string str="Tom's_Living_Room";

C: string str("Tom's_Living_Room");

D: string str("Tom"s_Living_Room");

正确答案:♦A♦