The cycle begins from adult male and female that leads to process 1, sperm and egg cells. The fusion of these cells forms zygote, which is the 2nd step. The 3rd step leads to zygote developing into a baby and finally into adult humans, starting the cycle again. Which of the following does 'III' represent within this life cycle?
a. Mitosis
b. Meiosis
c. Fertilization
d. None of the above