Which of the following is correct?

Options

A. 6-8 blind tubules at the junction of gizzard and midgut to secrete digestive enzymes.
B. 6-8 blind tubules at junction of midgut and ileum to secrete digestive enzymes.
C. 6-8 blind tubules at the junction of crop and gizzard which eliminate wastes from haemolymph.
D. 100-150 thin yellow tubules at the junction of foregut and midgut to eliminate wastes from haemolymph.