Biology

The correct answer is: A.To regulate the body's physiological responses, such as metabolism

Explanation:

Hormones are key signaling molecules that play a major role in coordinating various physiological processes in the body.

Here’s a breakdown of the options:

A.To regulate the body's physiological responses, such as metabolism: Correct. Hormones like insulin, thyroid hormones, and adrenaline regulate critical functions such as metabolism, growth, and stress responses. They act on target cells to trigger appropriate physiological changes, such as controlling blood sugar levels or adjusting metabolic rates.

B.To s...