In the 1970s, A) Students often walked or rode bikes to school

B) Families were more likely to eat at restaurants

C) Students rarely had class recess time

D) Restaurant portions were about 30% larger than today

if you are asking how much they can go over the 1500 limit it would be safetly within the 2310 and 2600.mg

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 .