Accrding to the rules: S6 means 5 is not S, so 5 must have to be T, and then 7 can not be R or T, i.e. 7 is S. Hence,considering the rules, 8 is not S or R, and it has to be T. If 4 is T, then 2 must not be T too, so it could be S or R. if 2 is S, then 1 is T, and if 2 is R, then 1 must be T. so for the answers, E must be true, D must be wrong, C must be true, and B is wrong, only A could be true. So the answer is A. The question is asking "could be true",not must be true. Therefore, you only got one choice, A. |