The correct option is A Only conclusion I follows
In the statements, Q = Z, C ≥ G, G ≥ Q, Q ≥ R, J ≥ C
Combining all these statements, we get
J≥C≥G≥Q=Z≥R
I. G ≥ Z ⇒ True (because G ≥ Q and Q = Z, so G ≥ Z)
II. C ≥ R ⇒ partly true (because if R = 10 then Q = 10 and 11. If, take Q = 11 then G = 11 and 12. If, take G = 12 then C = 12 and 13. So, C ≥ R will not true but if Q = 10, then G = 10 and 11. Once again G = 10, then C = 10 and 11, then it will true.)
So, only I is true.