For the Net Synthesis of One Six-Carbon Sugar from CO₂

Multiple Choice

For the net synthesis of one six-carbon sugar from CO₂ in photosynthesis there is a requirement for

A) 12 ATP and 12 NADPH.
B) 18 ATP and 18 NADPH.
C) 12 ATP and 18 NADPH.
D) 18 ATP and 12 NADPH.