Coding Decoding (Logical Reasoning)

First two letters are moved one step forward like BR = CS.
Next two letters are moved two steps forward like OW = QY.
Next two letters are moved three steps forward like NN = QQ.
Next two letters are moved four steps forward like OS = SW.
Next two letters are moved five steps forward like ER = JW.

Similarly, 'SYCOPHANCY' be written as 'TZEQSKERHD'.

First three letters are moved one step backward (REG = QDF), fourth letter is kept the same (A = A) and the last three letters are moved one step forward (LIA = MJB). Then, the whole code is reversed (QDFAMJB = BJMAFDQ).
Similarly, MAGNATE is coded as FUBNFZN.

This option is correct because all the letters are moved two steps forward. Then, the whole code is reversed.
H = J, A = C, R = T, R = T, I = K, E = G, R = T
HARRIER = reverse of JCTTKGT, i.e. TGKTTCJ.
Similarly, DUBIOUS is written as UWQKDWF.

All the letters are moved two steps forward.
M = O, A = C, L = N, L = N, A = C, R = T, D = F
Similarly, T = V, E = G, N = P, A = C, B = D, L = N, E = G

The first letter is moved one step forward, second letter is moved two steps forward, third letter is moved three steps forward and so on. Then, the whole code is reversed.
MODULATION = reverse of NQGYQFAQXX, i.e. XXQAFQYGQN.
Similarly, GENEROSITY is written as ICQZUWIQGH.

The letters positioned at 1, 3, 5 and 7 are moved four steps forward and the letters positioned at 2, 4, 6 and 8 are moved four steps backward.
So, A = E, E = H, T = X, R = V and L = H, A = W, O = K, Y = U.
Similarly, CHARCOAL is written as GDENGKEH.

All letters are moved five steps forward. Then, letters positioned at first and third are interchanged and at fifth and seventh are interchanged, and rest of the letters remained same.
Similarly, LAGGARD is written as LFQLIWF.

Letters which are positioned at 1, 3, 5 and 7 are moved two steps forward and the other letters which are positioned at 2, 4, 6 and 8 are moved three steps backward.
So, F = H, E = G, H = J, L = N and R = O, E = B, O = L, D = A.
Similarly, H = J, R = T, S = U, I = K and A = X, D = A, H = E and P = M.
So, HARDSHIP is written as JXTAUEKM.

O = @, R = 1, I = %, E = 5, N = $, T = ?
Also, S = £, T = ?, A = +, R = 1, T = ?, L = 3 and E = 5
Similarly, E = 5, N = $, T = ?, I = %, T = ?, L = 3 and E = 5

M = 5, A = @, R = 0, I = %, G = 9, O = $, L = 7, D = &
Also, P = 6, L = ?, A = @, I = %, N = 3 and T = +.
Similarly, T = +, A = @, M = 5, P = 6, O = $ and N = 3

All letters are moved two steps forward as AUTONOMY = CWVQPQOA.
Similarly, COMPLIANCE = EQORNKCPEG

B = 7, R = @, U = 4, N = £, E = 0, T = $
Also, O = &, P = 3, P = 3, O = &, S = ?, I = 6, T = $ and E = 0.
Similarly, R = @, E = 0, T = $, E = 0, N = £, T = $, I = 6, O = & and N = £.

R = $, E = 5, S = +, T = 1, O = £, R = $, E = 5
Also, U = < , L = ?, C = 7, E = 5, R = $, A = @, T = 1, and E = 5.
Similarly, C = 7, O = £, A = @, L = ?, E = 5, S = +, C = 7 and E = 5.

S = ?, P = 6, O = $, N = £, G = 3, E = %
Also, T = &, A = @, N = £, K = 1, A = @ = R = 2 and D = +.
Similarly, N = £, A = @, R = 2, R = 2, A = @, T = &, O = $ and R = 2.

E = @, N = 4, T = $, R = 5, E = @, A = +, T = $
Also, I = &, N = 4, C = 9, O = 0, M = ? and E = @.
Similarly, M = ?, A = +, R = 5, I = &, N = 4, E = @ and R = 5.