CAN SOMEONE PLS HELP ITS A VERY IMPORTANT GRADE PLS HELP ASAP

I believe the answer is respiratory bc of how blood exchange works in the body w the circulatory system. None of the other answers make sense either

The answer to your question would be c. mineral oil  

Answer it was we, the the whole people, who formed the union. and we formed it, not to give the blessings of liberty, but to secure them: not to the half of ourselves and the half of our posterity, but to the whole people- women as well as men.