If FATHER is coded as DCRJCT, then what is the code for UNCLE?

If FATHER is coded as DCRJCT, then what is the code for UNCLE?

SPANC
SPANA
WLEJG
WLEGJ
This question was previously asked in
UPSC CBI DSP LDCE – 2023
The correct answer is A) SPANC.
Analyzing the coding of FATHER (F-A-T-H-E-R) to DCRJCT (D-C-R-J-C-T), we observe a consistent pattern of letter shifts based on their alphabetical position:
F (6) -> D (4): Shift -2
A (1) -> C (3): Shift +2
T (20) -> R (18): Shift -2
H (8) -> J (10): Shift +2
E (5) -> C (3): Shift -2
R (18) -> T (20): Shift +2
The pattern of shifts is alternating -2, +2, -2, +2, -2, +2.
Applying this pattern to UNCLE:
U (21) -> U – 2 = S (19)
N (14) -> N + 2 = P (16)
C (3) -> C – 2 = A (1)
L (12) -> L + 2 = N (14)
E (5) -> E – 2 = C (3)
Thus, UNCLE is coded as SPANC.