Four letter-clusters have been given, out of which three are alike in some manner and one is different. Select the letter-cluster that is different.

FHWU

1   2    3    4   5    6   7     8    9  10  11  12  13

 A   B   C    D   E    F   G    H    I    J    K    L   M

 ↓    ↓    ↓    ↓    ↓     ↓   ↓    ↓     ↓   ↓    ↓    ↓    ↓

 Z   Y    X   W   V    U   T    S    R   Q   P    O   N

26  25  24  23  22  21  20  19  18  17  16  15  14

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THE LOGIC FOLLOWED HERE IS :

1) TFKG,

T(20) + F(6) + K(11) + G(7)

= 44

2) FHWU,

F(6) + H(8) + W(23) + U(21)

58

3) RDMI,

R(18) + D(4) + M(13) + I(9)

= 44

4) JNCQ,

J(10) + N(14) + C(3) + Q(17)

= 44

Thus, FHWU is odd one.