F ( X ) = 2 x 2 FC , If X60 b, if X = 0 3 x + 26 , X 70 which option lists only pairs a 8 b that can make lim F(x ) exist ? X-O a ) b : /2 and a = 1/ b = -1 and a = - 2 b= " and a= 21 / b = - 2 and a = - 31 b ) b = e and a : 2e, 1 = 0 and a= 0 1 = 2 and a= 4, ! b - 1 and a = 21 ") b = 0 and a = ( ) 6 = 0 and a = 0,b= 1 and a = 2, 1=said b = 2 and a = 31 d \\ b = 0 and a : Q 1 b : 2 and a = 4 b = 3 and a= 6 b = ( and a = ( ) Chose only