let d $=($q$,$ o$,$ delta, q$0,$ F$)$ be a dfa. suppose Q $=\{$ q$0,$q$1,$q$2,$q$3\}$ and F $=($q$2,$q$3).$ For some state q in Q and character a in sigma, which of the following are possible values of delta$($q$,$a$)?$ q$4,$ q$,\{$q$0,$ q$1),$ q$0,$ or $0$ with slash through it