Which choice is correct syntax for a switch statement?
switch
x = 7; switch x case 2 disp("two"); otherwise disp("not two"); end
x = 7; switch x : case 2 disp("two"); otherwise disp("not two"); end
x = 7; switch x case 2 disp("two"); else disp("not two"); end
x = 7; switch x case 2 disp("two"); default disp("not two"); end