The model below shows a human fetus at various stages of development. image which choice best explains how the model illustrates the role of mitosis in fetal development? a the model shows that the fetus becomes more complex during development. this is because mitosis allows the cells that make up the fetus to become specialized. b the model shows that the fetus increases in size while developing. this is because mitosis allows cells to grow and increase in size. c the model shows that the fetus both loses and develops structures over time. this is because mitosis can heal and repair tissues. d the model shows that the fetus gets larger as time goes on. this is because mitosis constantly increases the number of cells that make up the fetus.