Professor Henry is preparing a traditional Thanksgiving meal and decides to make some turkey soup. He uses part of the leftover turkey and adds carrots, celery, and onions. He cools the soup in the refrigerator overnight, and the next morning he notices an undissolved layer a fat floating at the top of the soup. This top layer of fat is
a)hydrophilic substance b) monosaccharide c)polysaccharide d)hydrophobic substance e) disaccharide