Three of the following four letter-clusters are alike in a certain way and one is different. Find the odd one out.
Using English alphabet conversion table,
$$C=3,\ U=21,\ F=6,\ X=24.$$
So, $$U-C=21-3=18.\ and\ \ X-F=24-6=18.$$
HSKP and QJTG follow the same rules.
But,$$D=4,\ W=23,\ Y=25,\ A=1.$$
B is correct answer.
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