I will help you narrow it down, because I am not sure how many vitamins you can obtain from unenriched rice, but I do no that any time you would have a deficiency in vitamins, it would be because of not eating enough food that contains certain vitamins in general. So it's between B and C, I am leaning towards B.
They need more nutrients/food than their bodies can absorb through the skin and they can eat more by actually consuming physically.
B.
Asbestos was used in housing for many years because it was cheap to manufacture and was amazingly heat-resistant, but was found to be incredibly dangerous, causing innumerous accounts of lung cancer and related problems.
This is from memory, but I will double check after I answer.
Answer;
-All blood types made compatible with each other
Explanation;
-In 1898, it was discovered that inherited differences in people’s red cells were the cause of many of the incompatibilities found with transfusions.
-During World War I, when human blood was needed for transfusions for wounded soldiers, studies began of how to preserve and transport blood and four blood types were identified.
B. That is not related to the Structural adaptation. And are in you in K12?