How Is the Process of Carbon Fixation Necessary for Plant

Multiple Choice

How is the process of carbon fixation necessary for plant growth?

A) Carbon fixation extracts carbons from organic plant sugars to be used for energy.
B) Carbon fixation incorporates carbon from PGAL into sugar molecules.
C) Carbon fixation extracts carbon from an inorganic source (CO₂) and uses it to build sugars.
D) Carbon fixation extracts carbon from an inorganic source (CO₂) to produce O₂ needed for plant growth.
E) Carbon fixation regenerates carbon to be used in the light-dependent reactions for ATP production.