Which of the following carries oxygen to every cell of your body?

Question

alveoli
bronchi
capillaries
lungs

I think its number 2 but i'm not sure, Could someone check my answer?

Answer 1

http://www.dictionary.com/browse/alveoli

http://www.healthline.com/human-body-maps/bronchi

http://www.medicinenet.com/script/main/art.asp?articlekey=2622

Answer 2

All of them help!!!

Answer 3

I can only chose on though!!!! >:(

Answer 4

If you read those definitions, you'll find your answer.

Answer 5

is it The third one?

Answer 6

Wait is my answer even wrong?!?!?

Answer 7

Yes, capillaries is right.