The most oxygen being produced is at point C. Option B.
How to determine highest point in normal distribution curve.
The highest point of the Normal curve occurs for the mean of the population. The properties of the Normal distribution ensure that this point is also the median value and the mode.
Moreover, these values all represent the peak, or highest point, of the distribution.
From this curve, point C represents when oxygen is most produced during photosynthesis.
Light intensity, temperature, carbon dioxide levels, water availability, and chlorophyll concentration influence oxygen production in photosynthesis by plants and algae.