Which of the Following Sequences Correctly Represents the Phytochrome Signal $\rightarrow$

Multiple Choice

Which of the following sequences correctly represents the phytochrome signal transduction pathway?

A) red light $\rightarrow$ PIF3 activation $\rightarrow$ PIF3 into nucleus $\rightarrow$ light-responsive gene switched off
B) red light $\rightarrow$ Pfr to Pr $\rightarrow$ Pr into nucleus $\rightarrow$ Pr-PIF3 complex $\rightarrow$ light-responsive gene regulation
C) UV light $\rightarrow$ PIF3 into nucleus $\rightarrow$ light responsive gene produces phytochrome $\rightarrow$ Pr to Pfr
D) blue light $\rightarrow$ Pfr into nucleus $\rightarrow$ Pfr-PIF3 complex $\rightarrow$ light-responsive gene regulation
E) red light $\rightarrow$ Pr to Pfr $\rightarrow$ Pfr into nucleus $\rightarrow$ Pfr-PIF3 complex $\rightarrow$ light-responsive gene regulation