A local variable declared in a function is not usable outside that function. True False System depended Depending on problems Which of the following functions compares two strings? compare (); string compare(); cmp(); strcmp(); Which of the following adds one string to the end of another? append(); stringadd (); strcat (); stradd (); Which of the following correctly declares an array? int anarray [10]; int anarray; anarray{10}; array anarray[10]; Which of the following is a two-dimensional array? array anarray [20] [20]; int anarray[20][20]; int array [20, 20]; char array [20]; What character ends all strings? '.' '' '\0