This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: general microbiology, Subject name: Microbiology
Which of the following takes place during latent phase of growth curve 
Select and explain. 
A. Bacterial cell number increase, B. Bacterial cell size increase, C. Bacterial cell size decrease, D. Sporulation
D: Sporulation
Answer: D: Sporulation 
Explanation: Sporulation occurs in the latent period of bacterial growth due to potential of growth and multiplication