R1 = (alb)"0*1*)(alb) R2 = (alb) (0*1*)(alb) R3 = 01(R2) Recall that, for a list of regular expressions, the function getToken() returns the next token from the input that matches one of the regular expressions. If there is more than one match, the longest match is returned. If there is more than one longest match, the token with the longest match that appears first in the list is returned. In the answers below EOF is an indication that there is no more input. Also, assume that if no token matches, ERROR is returned and only one input character is consumed. If the function getToken() is called is called twice on input 01a0101a, it will return ERROR R1 UR3 W R3 EOF R1 R3 R1 EOF None of the above