Question 8 Q: 8 _____________ are the smallest blood vessels. Options A: Arteries B: Venules Capillaries C: Arterioles Save Question Show Answer Discussion 0 Clear Discussion Most voted Newest No comments yet. Be the first to comment. Post Be respectful. No spam. Correct Answer: C Explanation Capillaries are the smallest blood vessels with endothelial linings that are only one cell thick. Thisallows for the transfer of water, oxygen, carbon dioxide, nutrients and waste between the blood andsurrounding tissues.