I think it is A but I am not completely sure
It takes 4 to 6 hours on average for food to leave the stomach after a meal; longer if there was a lot of fat, less time if the meal was mostly liquid. Total digestion time from stomach to elimination is about 53 hours on average.
If you want to eat 250 gm of chicken every day, that's fine. Be sure to add sufficient vegetables and fruits to have a balanced diet.
Ot would take about 3 to 6 months
