As a Result of the Transition from Daytime to Nighttime,how

Multiple Choice

As a result of the transition from daytime to nighttime,how will the relative concentrations of glyceraldehyde 3-phosphate (G3P) and ribulose 1,5-bisphosphate (RuBP) change in C3 plants?

A) The concentrations of G3P and RuBP would remain the same.
B) The concentrations of G3P and RuBP would both decrease.
C) G3P would increase and RuBP would decrease.
D) G3P would decrease and RuBP would increase.