i. Describes the overall purpose of the program II. Describe what a call to serColor does. Include a discussion of the parameters passed to the function. III. Describes what condition(s) is being tested by each call to the procedure polarPlot. function setColor(pixel, red, green, blue) { pixel.setRed(red): pixel.setGreen green); pixel.setBlue blue): } function polarPlot(r, t, xShift, yShift) { var x = Math.trunc( r* Math.cos(t"Math.PI/180.0) ) + xShift; var y = Math.truncrMath.sin(t* Math.PI/180.0) ) + Shift; if (x >= 0 && y >= 0 && x