The correct sequence of mammalian mammary gland ducts beginning from the alveoli would be:
| 1. | Mammary tubules → Mammary ducts → Mammary ampulla → Lactiferous ducts |
| 2. | Lactiferous ducts → Mammary ducts → Mammary ampulla → Mammary tubules |
| 3. | Lactiferous ducts → Mammary ampulla → Mammary ducts → Mammary tubules |
| 4. | Mammary tubules → Mammary ampulla → Mammary ducts → Lactiferous ducts |
| A | B | C | |
| 1. | Mammary duct | Lactiferous duct | Ampulla |
| 2. | Lactiferous duct | Ampulla | Mammary duct |
| 3. | Ampulla | Mammary duct | Lactiferous duct |
| 4. | Mammary duct | Ampulla | Lactiferous duct |