Final answer:
The glands that secrete into the digestive tract include gastric, mucous, and salivary glands. Hence the correct answer is option A , B and D
Step-by-step explanation:
The glands that secrete into the digestive tract include the a) gastric glands, b) mucous glands, and d) salivary glands.
Gastric glands are found in the stomach and release gastric acids and enzymes to help with food processing. Mucous glands secrete mucus, which protects and lubricates the lining of the digestive tract. Salivary glands produce saliva, which contains digestive enzymes and helps with the initial breakdown of food in the mouth.
Hence the correct answer is option A , B and D