Neither is necessary... the first will create arrays and the second AFAIK won't do anything. Simply changing the variable to string variables works just fine
Code:
10 HOME
20 INPUT "What state do you live in?";A$
30 IF A$ = "Ohio" THEN GOTO 50
40 IF A$ < > "Ohio" THEN GOTO 10
50 INPUT "Correct! Type 'next' for the next question.";B$
60 IF B$ = "next" THEN GOTO 70
70 HOME
80 INPUT "What month is this?";C$
90 IF C$ = "February" THEN GOTO 110
100 IF C$ < > "February" THEN GOTO 70
110 PRINT "Correct! Thus concludes this program."
120 END