Question
Which was discovered first ?
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$\begin{array}{|l|l|} \hline Column\;-\;I & Column\;-\;II \\ \hline A.\;Trypsin & 1.\;Intercellular\;ground\;substance \\ \hline B.\;GLUT-4 & 2.\;Hormone \\ \hline C.\;Insulin & 3.\;Enzyme \\ \hline D.\;Collagen & 4.\;Enables\;glucose\;transport\;into\;cells \\ \hline \end{array}$
$I$. Zoos
$II$. Seed/pollen banks
$III$. Gene bank and tissue cultures
$IV$. Botanical garden
Choose the correct option