Records R1, R2, R3,.. RN with keys K1, K2, K3,.. KN are said to be h-ordered, if ________
(a) Ki <= Ki+h for 1<= i*h <= N
(b) Kh <= Ki+h for 1<= i <= N
(c) Ki <= Kh for 1<= i <= h
(d) Ki <= Ki+h for 1<= i <= N-h
I had been asked this question during an online exam.
Query is from Shell sort in section Sorting of Data Structures & Algorithms II