Question

Which of the following are functions of the endocrine system? 1. Regulation of metabolism through hormones like thyroid hormone. 2. Regulation of growth and development through growth hormone. 3. Transmission of electrical signals through neurons. 4. Regulation of mood and stress response through cortisol. Select the correct answer using the code below:

A 1, 2, 4
B 2, 3, 4
C 1, 2, 3
D 1, 3, 4
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