Refer to the Graph Below Showing Data Collected from Experiments

Multiple Choice

Refer to the graph below showing data collected from experiments performed on living leaves attached to two different plants, maize and bean.The rate of photosynthesis in each leaf was measured at varying concentrations of carbon dioxide present in the intercellular spaces within the leaves. Based on these results, what is the likely classification of maize and bean plants, and which plant would grow better at reduced carbon dioxide levels?

A) Maize and bean are both C₄ plants, and maize would grow better than bean plants at low carbon dioxide levels.
B) Maize and bean are both C₃ plants, and maize would grow better than bean plants at low carbon dioxide levels.
C) Maize is a C₄ plant, bean plants are C₃, and bean plants would grow better than maize at low carbon dioxide levels.
D) Maize is a C₄ plant, bean plants are C₃, and maize would grow better than bean plants at low carbon dioxide levels.
E) Bean plants are C₄ plants, maize is C₃, and bean plants would grow better than maize at low carbon dioxide levels.