What observations would be useful in comparing the movement of the sun across the sky during the day to the movement of the stars across the sky at night? Choose the two correct answers. A. Identify the direction in which the sun moves. B. Identify the names of stars in a constellation. C. Identify the direction in which the stars move. D. Note the color of the sun when it rises and sets. E. Compare the brightness of the sun with that of the stars.