manstein

Assume A is correct, den B is oso correct, therefore not the rite answer  t; I# l' ]% B7 t( T
Assume B is correct, den assume A is lying, den the culprit is either A or D, den if D is oso lying, den the culprit is either C or D, den C cannot b lying...becuz if A is lying means tat C is correct...
2 j7 J# H8 q+ g5 [Assume C is correct, den A is lying, so the culprit is either A, B or D, if B is lying, means tat the culprit is himself, den if D is lying oso den the answer is B, C or D
2 e, q& z7 y; Q1 S3 p2 \Assume D is correct, den the culprit is A but den in that case B n C r oso correct...
2 q, i7 d! ~% ^9 g  @: U' htvb now,tvbnow,bttvb
$ q7 F6 |, x) y5 r, X" VTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。So the ACTUAL CULPRIT is B+ d$ L4 L0 f( o5 [' T- _

; q% w( K' S8 }8 d' NTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。