Using ¹⁴CO₂ as a radioactive tracer,which molecule would be the last to incorporate ¹⁴C within the Calvin cycle?

A)ribulose biphosphate (RuBP)
B)glyceraldehyde-3-phosphate (G3P)
C)rubisco
D)1,3-biphosphoglycerate (1,3-BPG)
E)3-phosphoglycerate (3PG)