If r = 0.345, s = (0.345)^2, and t = 0 345^1/2 . , which of
the following is the correct ordering of r, s, and t ?
(A) r < s < t
(B) r < t < s
(C) s < t < r
(D) s < r < t
(E) t < r < s

Explain the basic principle !