The relation " son of " is

Let M be the set of men and R is a relation is son of defined on M.Then,R is ( a) an equivalence relation (b) a symmetric relation (c) a transitive relation (d) None of these

Let M be the set of men and R is a relation 'is son of defined on M.Then,R is (a) an equivalence relation (b) a symmetric relation only (c) a transitive relation only (d) None of the above

If A is the mother of B and K, D is the husband of A. E is the son of D's brother, what is the relation of A with E?

If A is the brother of the son of B's son, how is A related to B ?

If P is the brother of the son of Q’s Son, how is P related to Q?