Which of the following is an example of moving properly for a basic squat?
feet shoulder width apart, heels on the ground, back straight as you lower your body
feet inches apart, heels on the ground, back straight as you lower your body
feet shoulder width apart, heels off the ground as you lower your body with back straight
feet inches apart, heels on the ground as you lower your body with back curled

since you have not provided the options here i   am going to give you general overview about hormone.hormone are actually the part of endocrine system in our body and produced by the endocrine glands. the hormones act like a chemical messenger   within human body. once produce by the glands they   travel through the blood stream and reach at specific or target tissue and organs   which result in control of our body function. the hormones are specific in their work and work on only the targeted tissue or organ   . with the of hormone endocrine system regulate the heart rate , metabolism, our mood and   growth as well as the development and even the sleeping cycle etc. they actually are the messenger for body cell and organs .

i believe the answer would be 'd'.

hope this !