A) black night shade (Solanum nigrum)
B) lemon grass (Cymbopagon flexuosus)
C) sugarbeet (Beta vulgaris)
D) snake plant (Sanseviera thfasciata)
Correct Answer: B
Solution :
Lemon grass (Cymbopogon flexuosus) is a CAM plant in which stomata open only in night and close in day time to avoid evaporation.
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