Four number pairs are given, out of which three are same in a certain…

Except option (4) all other are square +2 of the next number

(a)      11  :  146

          11 + 1  =  12²  =  144 + 2 = 146

(b)      14  :  227

          14 + 1  =  15²  =  225 + 2 = 227, all other likewise.

(c)      17  :  326

          17 + 1  =  18²  =  324 + 2 = 326, all other likewise.

(d)      10  :  119

          10 + 1  =  11²  =  121 + 2 = 123,