Final answer:
ATP and NADPH generated in the photosynthetic light reactions provide the fuel to convert CO₂ into sugars in chloroplasts. Hence the correct answer is option B
Step-by-step explanation:
The fuel that provides the energy to convert CO₂ into sugars in chloroplasts is ATP and NADPH generated in the photosynthetic light reactions. The light-dependent reactions of photosynthesis convert light energy into chemical energy by forming ATP and NADPH. These energy carriers are then used in the light-independent reactions of photosynthesis, also known as the Calvin cycle, to fix CO₂ and produce organic sugar molecules.
Hence the correct answer is option B