Choose the alternative that best replaces the question mark(?) in the
given figure.

Correct option is A

Logic = a² + c^2​ + b = d in a column

Check column 1:  4² + 2² + 3 =  16 + 4 + 3 = 23
Check column 2: 3² + 5² + 6 = 9 + 25 + 6 = 40

So the rule fits both given columns.

Apply to column 3: 1² + 7² + 8 = 1 + 49 + 8 = 58