UV rays optimize the synthesis of Vitamin D
That statement is "false" since the cause is still sort of unknown. Scientists are still working on figuring out why the immune system incorrectly damages and destroys the insulin-producing beta cells from the pancreas, which is how the type 1 diabetes is developed. However, muted genes are surely not a cause.
Let me know if you need further info. :)
- Dotz
The answer is B) red blood cells. I hope this helps!