This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Physiology
Which of the following hormones increases the sensitivity of heart to epinephrine: 
Select and explain. 
A. Parathyroid, B. Insulin, C. Thyroid, D. Glucagon
C: Thyroid
Answer: C: Thyroid 
Explanation: None