Select the option that is related to the third number in the same way as the second number is related to the first number.
4262 : 4271 :: 2139 : ........
$$4262:4271$$ digits in each number sum up to 14 .
$$4262=4+2+6+2=14,4271=4+2+7+1=14$$
Similarly, numbers in second set are sum up to 15 .
So,2346 is correct choice.
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