Match the following by using codes:

$A.$ Vernalization                         -          $1. $ Camerarius

$B.$ Double fertilization                -          $2.$  Hofmeister

$C.$ Pollination                             -          $3. $ Lysenko

$D.$ Alternation of Generations    -          $4. $ Nawaschin

• A

  $\begin{array}{*{20}{c}}{\begin{array}{*{20}{c}}A&B&C\end{array}}&D\\{\begin{array}{*{20}{c}}1&2&4\end{array}}&3\end{array}$

• B

  $\begin{array}{*{20}{c}}{\begin{array}{*{20}{c}}A&B&C\end{array}}&D\\{\begin{array}{*{20}{c}}4&1&2\end{array}}&3\end{array}$

• C

  $\begin{array}{*{20}{c}}{\begin{array}{*{20}{c}}A&B&C\end{array}}&D\\{\begin{array}{*{20}{c}}3&2&1\end{array}}&4\end{array}$

• D

  $\begin{array}{*{20}{c}}{\begin{array}{*{20}{c}}A&B&C\end{array}}&D\\{\begin{array}{*{20}{c}}3&4&1\end{array}}&2\end{array}$