Assertion: C3 plants show a higher rate of photosynthesis at higher CO2 concentrations compared to C4 plants.
Reason: C3 plants saturate at a higher CO2 concentration (above 450 μl L⁻¹) than C4 plants.
1
Both assertion and reason are true, and the reason is the correct explanation of the assertion.
2
Both assertion and reason are true, but the reason is not the correct explanation of the assertion.
3
The assertion is true, but the reason is false.
4
Both assertion and reason are false.