All of the Following Are True Statements Concerning the Generation

All of the following are true statements concerning the generation time of bacterial cells EXCEPT:

A) Generation time is the number of cell divisions per unit time.
B) Some bacteria have a generation time of 20 minutes or less.
C) Generation time is the time required for a bacterial cell to grow and divide.
D) Generation time can be affected by changes in chemical or physical conditions.
E) Most bacteria have a generation time of three hours or less.