A microbiologist during a study on a culture of 250 bacteria noticed that he can model the number of bacteria after t number of days by the equation B = 250 x 4^t In this equation what does 4^t represent?
A The number of bacteria increases by t after 4 days
B. The number of bacteria increases by a factor of teach day for 5 days.
C. The number of bacteria increases by a factor of 4 each day
D. The number of bacteria increases by 4 each day

i need help please!!