Final answer:
Arteries are the vessels that transport blood away from the heart to various parts of the body. The correct option is B.
Step-by-step explanation:
The part of the body system that transports blood away from the heart is the arteries. Arteries are muscular blood vessels with thick walls designed to withstand the high pressure of blood pumped by the heart.
They begin with the largest artery called the aorta, which branches into major arteries that direct blood to the limbs and organs, and then further divide into minor arteries and arterioles to reach the body's muscles and organs.
Therefore, the correct option is B.