What is the primary function of chloroplasts? A. Regulation of gas movement between the leaf and the environment.

B. Carrying out photosynthesis with the help of chlorophyll.

C. Storing the carbohydrates produced by the cell.

What is the best conclusion based on this data? the hypothesis was not supported because the data indicated that fertilizing plants does not improve plant growth. the hypothesis was supported; to get the best growth, use 5 milliliters of fertilizer per plant. the hypothesis was not supported; the data indicated that too much fertilizer can inhibit plant growth. the hypothesis was supported; to get the best growth, use 15 milliliters of fertilizer per plant.