The answer would be C , hope this helps
Answer:
Vein: A blood vessel that carries blood that is low in oxygen content from the body back to the heart. The deoxygenated form of hemoglobin (deoxy-hemoglobin) in venous blood makes it appear dark. Veins are part of the afferent wing of the circulatory system, which returns blood to the heart.
Explanation:
Which of the following is covered in the usage and mechanics section of the ACT English test?
A.
Punctuation
I would think A,B, and D are the most logical answers
Answer:
Untreated, hereditary hemochromatosis can lead to a number of complications, especially in your joints and in organs where excess iron tends to be stored — your liver, pancreas and heart. Complications can include:
Liver problems. Cirrhosis — permanent scarring of the liver — is just one of the problems that may occur. Cirrhosis increases your risk of liver cancer and other life-threatening complications.
Pancreas problems. Damage to the pancreas can lead to diabetes.
Heart problems. Excess iron in your heart affects the heart's ability to circulate enough blood for your body's needs. This is called congestive heart failure. Hemochromatosis can also cause abnormal heart rhythms (arrhythmias).
Reproductive problems. Excess iron can lead to erectile dysfunction (impotence), and loss of sex drive in men and absence of the menstrual cycle in women.
Skin color changes. Deposits of iron in skin cells can make your skin appear bronze or gray in color.
