Charles and his friends started a community group in 2008 to address problems in their neighborhood and to host civic events.

the number of members changed over time as shown in the graph, where the y-axis represents the number of members and the x-axis represents the number of years since 2008.

which statement is true?

a. the function indicates that the group began with 40 members and is decreasing in size.

b. the function indicates that the group began with 375 members and is decreasing in size.

c. the function indicates that the group began with 375 members and is increasing in size.

d. the function indicates that the group began with 40 members and is increasing in size.