With reference to factors affecting the rate of photosynthesis, which of the following statements is not correct?
(a) Increasing atmospheric CO2 concentration up to 0.05% can enhance CO2 fixation rate.
(b) C3 plants respond to higher temperature with enhanced photosynthesis while C4 plants have much lower temperature optimum.
(c) Tomato is a greenhouse crop which can be grown in CO2 enriched atmosphere for higher yield.
(d) Light saturation for CO2 fixation occurs at 10% of full sunlight.