Which of the following letter-clusters should replace # and % so that the pattern and relationship followed between the letter-cluster pair on the left side of :: is the same as that on the right side of ::?
# : VEC :: BNW : %

Correct option is A

Given - # : VEC :: BNW : %

Option A:
#= XHA, % = ZKY
Check XHA → VEC
X → V = –2
H → E = –3
A → C = +2
and
BNW → ZKY
B → Z = –2
N → K = –3
W → Y = +2 - prefect  matching BNW → XHA
Option B:
#= ZKY, % = FTS
ZKY → VEC
Z → V = –4
K → E = –6
Y → C = +4
and

BNW → FTS
B → F = +4
N → T = +6
W → S = –4 = Not matching

​Option C:​

​# = FTS, % = XHA

​Check FTS → VEC
F  - 10 = V

T + 11 = E

S + 10 = C
and
BNW → XHA​

B - 6 = X

N - 6 = H

W + 4 = A Not matching

Option D:
= DQU, % = XHA
DQU → VEC
D → V = - 8
Q → E =  - 12
U → C = + 6, 
Already seen BNW → XHA -  Not matching

Final Answer:
#= XHA, % = ZKY
Final Correct Option: (A) #= XHA, % = ZKY