The Only Known "Solution" to the Loss of Efficiency Caused

Multiple Choice

The only known "solution" to the loss of efficiency caused by the oxygenation of RuBP by rubisco is to raise the concentration of CO₂ in the cell using energy from ATP. Which of the following is MOST correct of such plants?

A) They are tolerant of shade.
B) They are often found in bright, sunny habitats.
C) They do not produce O₂.
D) They do not produce reactive O₂ species.
E) They require high CO₂ levels.