Consider the following statements .
A. Sexual reproduction involves formation of the male and female gametes.
B. The birds living in nature lay eggs throughout the year,
C. The gametes fuse to from the zygote which develops to from the new organism.
D. Strobilanthus kunthiana (neelakuranji), flower once in 22 years.
Of the above statement .
A. B and D are correct
B. A and C are correct
C. A and B are correct
D. A and D are correct