`C_(4)` pathway is advantageous over `C_(3)` pathway in plants as it

Options

A. occurs in reIatively low `CO_(2)` concentration
B. uses more amount of water
C. occurs in relatively low `O_(2)` concentration
D. is less efficient in energy utilisation

Answer

A

Explanation

A plant with the `C_(4)` pathway is advantageous over a plant with a `C_(3)` pathway as the former can occur in low `CO_(2)` concentrations.
When the weather is hot and arid, the leaves close their stomata to reduce water loss. This closure results in low `CO_(2)` concentrations and thus, leading to both loss of RuBP and inhibition of Calvin-Benson cycle.