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