Decrypt the message OPEHHISTLWILKWPR which is the cyphertext produced by encrypting a plaintext message using the transposition cypher with blocks of four letters and the permutation σ of {1, 2, 3, 4} defined by
A) σ(1) = 4,
B) σ(2) = 1,
C) σ(3) = 2,
D) σ(4) = 3.