STD 11 - 13. Plant growth and development — NEET STD 11 Science — Question

 $\begin{array}{|l|l|} \hline Column\,\,-I & Column\,\,-II \\ \hline A.\,\,Natural\,\,auxin & 1.\,\,IAA \\ \hline B.\,\,Synthetic\,\,auxin & 2.\,\,NAA \\ \hline  & 3.\,\,IBA \\ \hline  & 4.\,\,2-4-D \\ \hline \end{array}$

$A - B$