In Models of Sigmoidal (Logistic)population Growth

In models of sigmoidal (logistic) population growth,

A) population growth rate slows dramatically as N approaches K.
B) new individuals are added to the population most rapidly at the beginning of the population's growth.
C) only density-dependent factors affect the rate of population growth.
D) only density-independent factors affect the rate of population growth.
E) carrying capacity is never reached.