Assuming that population growth is approximately exponential, which of the two sets of data is most likely to represent the population (in millions) of a city over a 5-year period?

Year	2000	2001	2002	2003	2004
Data I	4	4.25	4.51	4.79	5.08
Data II	4	4.1	4.4	4.9	5.6

A. $II$
B. $I$