For the equation:
A) The value of M depends on N. therefore A is false.
B) N is constant because it is the initial number of members. so B is also false
C) The function is not linear, it is an eexponential function, that increases with time. C is also false.
D) The intial value, i.e., when t=0, is N and it is not (1+r). Therefore, D is false.