Match the following
\[
\begin{array}{|c|l|c|l|}
\hline
& Genetic element/process & & Characteristic
\hline
A & \text{F plasmid} & I & \text{Uptake of naked DNA}
B & \text{Transformation} & II & \text{Sex pilus formation}
C & \text{Generalized transduction} & III & \text{Random bacterial DNA transfer}
D & \text{Hfr strain} & IV & \text{High-frequency chromosomal gene transfer}
\hline
\end{array}
\]
The correct answer is