J ÷ R – T x F means J is the brother of R who is the sister of T who is the father of F i.e. J is the uncle of F.
J + R – T x F means J is the mother of R who is the sister of T who is the father of F i.e. J is the grandmother of F
J ÷ M – N x F means J is the brother of M who is the sister of N who is the father of F i.e. J is the uncle of F
Here, none of the options follow.