6. Starting with the situation in Part (d)

of Problem 5, on what day would the population stabilize, in the sense that it would be the same as the day before, in each of the following situations:

a) With no change from the scenario in Problem 5.

b) Fruit flies increase their life span by one day, but can still only reproduce on their first day.

c) One young male and one young female fruit fly die each day before reproducing.