Did you mean the circulatory system?
The circulatory system, also called the cardiovascular system or the vascular system, is an organ system that pumps blood around the body and transport nutrients (such as amino acids and electrolytes), oxygen, carbon dioxide, hormones, and blood cells to and from the cells in the body to provide nourishment and help in fighting diseases, stabilize temperature and pH, and maintain homeostasis.
Always remeber that the fraction bar is just a divison sign. with that being said, you are going to divide the numerator=1 by the denominator=6. this will then give the decimal form 1.6666666. Because it continues repeating it will be Answer B
i hope this helps:)
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