Which of the following statements about c3 carbon fixation is true?

a. c3 carbon fixation is an adaptations for plants exposed to high light intensity.
b. c3 carbon fixation occurs in more plants and then c4 carbon fixation.
c. c3 carbon fixation is more common in the areas of high temperature is then c4 carbon fixation.
d. c3 carbon fixation occurs in the inner cells of a leaf rather than the entire leaf.

C3 fixation is one of the three processes that plants use to fix carbon during the process of photosynthesis. The otehr two are C4 and CAM fixation. The following statement about C3 carbon fixation is true: C3 carbon fixation occurs in more plants than C4 carbon fixation. Correct B

During the C3 fixation the enzyme RuBisCO (ribulose bisphosphate carboxylase/oxygenase) causes an oxidation reaction in which some of the energy used in photosynthesis is lost in a process known as photorespiration.

your spelling is a little off : ]