First aid kit
Water purifier
and maybe extra clothes and rain gear but you can live without them so I am not sure
So C and D
The pulmonary artery and its branches deliver blood rich in carbon dioxide (and lacking in oxygen) to the capillaries that surround the air sacs. The circulation of the blood through the lungs. The veins that return the oxygenated blood from the lungs to the left atrium of the heart.
