Place the Parts of the Nephron in Order of How

Multiple Choice

Place the parts of the nephron in order of how filtration would occur.
1) A cartilaginous model develops and becomes calcified during fetal development.
2) Osteoblasts cover the diaphysis with a compact bone collar.
3) Blood vessels bring osteoblasts into the cartilage.At the primary ossification center,osteoblasts form spongy bone.
4) The medullary cavity forms,the compact bone collar thickens and secondary ossification centers appear at the epiphyses.

A) 4, 3, 2, 1, 6, 5
B) 1, 2, 3, 4, 5, 6
C) 2, 1, 6, 4, 3, 5
D) 1, 2, 4, 3, 6, 5
E) 6, 4, 1, 2, 3, 5