Given the following instantaneous description, choose the most likely definition for $$ :

$(q_1,$aababbba,$00101z)|--(q_3,$ababbba,$1100101z)||$

$(q_1,a,0)=\{(q_3,110)\}$

$(q_1,,0)=\{(q_3,110)\}$

$(q_1,a,0)=\{(q_3,11)\}$

$(q_1,a,1)=\{(q_3,11)\}$