Answer:
A. Intrinsic factor
Explanation:
The Vitamin B12 is used by the human body in the synthesis of the DNA, proteins and the hormones. The vitamin B12 is absorbed by the human body from the niacin, thiamine and folate.
The digestion of vitamin B12 is digested in the stomach by peptidases which breaks down the protein attached to the vitamin and then attaching the intrinsic factor to the vitamin B12. The vitamin B12 gets absorbed by the digestive in this form.
The intrinsic factor is a glycoprotein formed by the parietal cells present in the stomach which aids in the digestion of vitamin B12.
Thus, Option-A is the correct answer.
The answer is C genital warts
