At Night, Assuming No Artificial Lights, Primarily ____

Multiple Choice

At night, assuming no artificial lights, primarily ____.

A) P_rabsorbs red light and is converted to P_fr
B) P_rabsorbs far-red light and is converted to P_fr
C) P_frabsorbs red light and is converted to P_r
D) P_frabsorbs far-red light and is converted to P_r
E) P_fris converted to P_r