What is the output of the following code? for (var i = 0; i <= 360; i+=60) a. ​i = 600, 300, 240, 180, 120, 60 b. ​i = 360, 240, 180, 120, 60, 0 c. ​i = 60, 120, 240, 480, 960 d. ​i = 0, 60, 120, 180, 240, 360