A cipher in which the order is not preserved

a-cipher-in-which-the-order-is-not-preserved-a-polyalphabetic

A cipher in which the order is not preserved.
A. Polyalphabetic substitution based
B. Transposition-based
C. Substitution based
D. Public key based
Right option is B. Transposition-based

In transposition-based cipher, the order of the plain text is not preserved. They can be very simple to identify.