It may be c, if not you can punch me in the face.
I do know the bones I think here are them <span>Structure of the </span>Pelvic Girdle<span>. The bony </span>pelvis<span> consists of the two hip </span>bones<span> (also known as innominate or </span>pelvic bones<span>), sacrum and coccyx. There are four articulations within the </span>pelvis<span>: Sacroiliac Joints (x2) – Between the ilium of the hip </span>bones<span>, and the sacrum.</span>
Carbon would be the answer to this because it is an element while water is a compound. In addition, carbon had 4 bonding sites which allows it to form a variety of molecules like sugars, proteins, and even DNA that are essential for life as we know it.
Smaller animals and or animals that eat vegetation.