Tanya prepared 4 different letters to be sent to 4 different addresses. For each letter, she prepared an envelope with its correct address. If the 4 letters are to be put into the 4 envelopes at random, what is the probability that only 1 letter will be put into the envelope with its correct address?
(A)
(B)
(C)
(D)
(E)
真汗，破解版居然连个选项都没有．．．
哪位能帮写一下这个题目的解题过程啊？ | 
