Which of the following choices lists the organs of the bird digestive system in the correct order, from first to last contact with food material?
◦ esophagus, gizzard, crop, stomach, intestine, anus
◦ esophagus, crop, gizzard, stomach, intestine, anus
◦ esophagus, crop, stomach, gizzard, intestine, anus
◦ esophagus, stomach, gizzard, crop, intestine, anus