I feel like this question is very troll but my guess is for less weight to hold them down....
Its B. Natural Gas........
<span>Hispanics went from 77.6% to 80.0%, although this was not a significant increase.</span>
Veins, artery, heart are all part of the circulatory system just to name a few. Hope this helps :)
C progressing incrementally as she is continuing her exercise and her shoulder would probably heal making her progress closer.