The graph represents a population of bacteria over a number of days, modeled with an exponential function. Based on the graph, which statement is true?
A.Initially there were 1,000 bacteria; the population will reach zero.

B.Initially there were 1,000 bacteria; the population will not reach zero.

C.Initially there were more than 1,000 bacteria; the population will reach zero.

D.Initially there were more than 1,000 bacteria; the population will not reach zero.