Answer
(e) all of these
Work Step by Step
(a) support = The skeleton supports the body and keeps organs in place. But most importantly it keeps you from being jello and collapsing on yourself.
(b) hematopietic site = Some bones in the skeleton contain red bone marrow and red bone marrow's main purpose is to make blood cells.
(c) storage = The skeleton is a storage site for your vital organs, blood, and necessary components to life.
(d) providing levers for muscle activity = Bones have notches to aid in muscle attachment.