How Do C₄ Plants Manage to Cause CO₂ Fixation to Be

Multiple Choice

How do C₄ plants manage to cause CO₂ fixation to be favored over photorespiration?

A) They can generate high [CO₂]/[O₂] ratios in the local Rubisco environment.
B) They can generate low [CO₂]/[O₂] ratios in the local Rubisco environment.
C) They destroy the cell wall.
D) They convert CO₂ to O₂.
E) They can generate high [CO₂]/[O₂] ratios in the local PEP carboxylase environment.