6- furfuryl ammino purine 2, 4- dichorophenoxy acetic acid and indole -3 - acetic acid are examples respectively for
A. Syntheic auxin ,Kinetin and natural auxin gibberellin ,natural auxin
B. Gibberellin , natural auxin and kinetin
C. Natural auxin ,Kinetin and synthetic auxin
D. Kinethin ,synthetic auxin and natural auxin