<span>a.Prenatal stage of a human up to 8 weeks of development after fertilization.
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The appropriate response is the lens. In the wake of passing the student, light crosses this. It is a bent, straightforward structure that serves to give extra core interest. It is appended to muscles that can change its shape to help in centering light that is reflected from close or far articles. In ordinary located people, it will concentrate pictures splendidly on a little space in the back of the eye known as the fovea.
Answer:
Your answer is B). Massive stars undergo a supernova at the red giant phase.
