Select the option that is related to the third number in the same way as the second number is related to the first number. 31 : 963 :: 17 : ?

291 290 289 287

291

Pattern is : 31 : 963  312 + 2 = 961 + 2 = 963 Similarly , 17 : ?  172 + 2 = 289 + 2 = 291 291 , is correct answer .