Step 1: Understanding the Concept:
Photosynthesis is an anabolic process where light energy is converted into chemical energy stored in organic compounds.
Step 2: Detailed Explanation:
The chemical equation for photosynthesis is:
$$6CO_2 + 12H_2O \xrightarrow{\text{Sunlight/Chlorophyll}} C_6H_{12}O_6 + 6H_2O + 6O_2$$
Here, $C_6H_{12}O_6$ is Glucose, which is the primary food/product. Oxygen is released as a byproduct.
Step 3: Final Answer:
The correct option is (b).