Solution:Given statement:
J ≤ H ≤ G = R > Z = E > D
(a) D > R = false (as R > Z = E > D), here R is greater than D.
(b) J ≤ G = true (as J ≤ H ≤ G),
(c) H ≥ R = false (as H ≤ G = R), here H is either equal or less than R.
(d) Z < D = false (as Z = E > D), here Z is greater than D.
Therefore, we can say that only option(b) is correct.