- Is Circuit 4 a serial or parallel circuit? - In Circuit 4, is the global array - ledPinson the heap allocated or stack allocated?- How do you generate a random floating point number between 0 and 1? - Create a new function in the Circuit 4 script that randomly flashes the LEDs like the - randomLEDfunction, but each LED should have its own random on and off time so it is possible for multiple LEDs to be lit at once.