Which of the Following Is Correct Regarding R-Selection

Multiple Choice

Which of the following is correct regarding r-selection?  

A) It favors quickly producing as many offspring as possible at low population density.
B) At a higher population density, r-selection favors fewer, high-quality offspring.
C) R-selection is exhibited by most equilibrial species.
D) Species not described by K-selection are entirely explained by r-selection alone.
E) None of these are correct.