Bacterial 'death rate' is equal to 'birth rate; in:

Explanation

Option A is incorrect because Lag phase is phase of no growth and bacteria prepare themselves for division.Option B is incorrect because Log phase is the phase of rapid growth, bacteria divide at exponential rate.Option C is incorrect because Death phase is phase in which bacteria start dying, and death rate is more than reproduction rate.Option D is correct since At stationary phase bacterial death rate is equal to reproduction rate.