B. Building blocks
This is most likely to be the answer
"positive" or "reactive" HBsAg test result means that the person is infected with hepatitis B. ... A positive anti-HBs (or HBsAb) test result means you are “immune” and protected against the hepatitis B virus and cannot be infected.
I believe the answer to your question would be the aorta. I hope that answers your question. :)
Answer:
Thyroid stimulating hormone.
Explanation:
Thyroid stimulating hormone will be elevated in a patient with primary hypothyroidism
