Which of the following completes the photosynthesis reaction shown?

The correct answer is glucose.

In the photosynthesis reaction, plants convert carbon dioxide and water into glucose (a type of sugar) and oxygen, using sunlight and chlorophyll as the catalyst for the reaction. The overall equation is:

6 CO₂ + 6 H₂O + light energy → C₆H₁₂O₆ + 6 O₂

This highlights the production of glucose as a primary product of photosynthesis. If you have more questions about photosynthesis or other topics, feel free to ask!