What does the following program do? import turtle def main): turtle. hideturtle() square (100, 0,50, 'blue) def square (x, y, width, color): turtle. penup () turtle. goto (x, y) turtle. fillcolor (color) turtle. pendown () turtle. begin fill for count in range (4): turtle. forward (width) turtle. left (90) turtle. end fill main) A) It draws a blue square at coordinates (100, 0), 50 pixels wide, starting at the top right B) It draws a blue square at coordinates (0, 50), 100 pixels wide, starting at the top right C) It draws a blue square at coordinates (100, 0), 50 pixels wide, in the lower-left corner. D) Nothing since you cannot call a function with turtle graphics corner. corner.