Match the following columns. $\begin{array}{ll|ll} \hline & \text{Column I} & & \text{Column II} \\ \hline \text{A.} & \text{Pinocytosis} & \text{1.} & \text{Euglena gracilis} \\ \text{B.} & \text{Holozoic} & \text{2.} & \text{Paramecium} \\ \text{C.} & \text{Parasitic} & \text{3.} & \text{Amoeba proteus} \\ \text{D.} & \text{Mixotrophic} & \text{4.} & \text{Monocystis} \\ \hline \end{array}$

• Correct answer
  A

  $\begin{array}{cccc}\text { Codes } & & & \\ \text { A } & \text { B } & \text { C } & \text { D } \\ 3 & 2 & 4 & 1\end{array}$
• B

  $\begin{array}{cccc}\text { Codes } & & & \\ \text { A } & \text { B } & \text { C } & \text { D } \\ 2 & 3 & 4 & 1\end{array}$
• C

  $\begin{array}{cccc}\text { Codes } & & & \\ \text { A } & \text { B } & \text { C } & \text { D } \\ 4 & 3 & 1 & 2\end{array}$
• D

  $\begin{array}{cccc}\text { Codes } & & & \\ \text { A } & \text { B } & \text { C } & \text { D } \\ 1 & 4 & 2 & 3\end{array}$

Hence, the correct answer is option: 'A'.