The mesoderm in an embryo will become the organism’s muscles.

Why is this statement true or false?

True; specific body parts will develop from specific cells or groups of cells in an embryo.
False; any cell in a mature embryo can develop into any cell of the body.
False; specific body parts do not develop from specific cells or groups of cells in an embryo.
True; all cells in a mature embryo can develop into muscle.