Which of the following statement(s) is/are correct about calyx?
A. Calyx is the outermost whorl of the flower and are called sepals.
B. Sepals are green, leaf like and protect the flower in the bud stage.
C. The calyx may be gamosepalous (sepals free) or polysepalous (sepals united).
D. Both (a) and (b)
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Correct Answer : D.
Calyx or sepals are the outermost lower most non-essential but protective whorl of the flower. Sepals are green, leaf like and protect the flower in bud stage. When the sepals are free from one another, the calyx is said to be polysepalous (mustard) & when the sepals are wholly or partially united with one another by their margins then the calyx is said to be gamosepalous.