Match the CORRECT pairs:

$\begin{array}{llll} & \text{Process} & & \text{Characteristics/Applications} \\ P. & \text{Friction Welding} & 1. & \text{Non-consumable electrode} \\ Q. & \text{Gas Metal Arc Welding} & 2. & \text{Joining of thick plates} \\ R. & \text{Tungsten Inert Gas Welding} & 3. & \text{Consumable electrode wire} \\ S. & \text{Electroslag Welding} & 4. & \text{Joining of cylindrical dissimilar materials} \end{array}$

1. $P-4; Q-3; R-1; S-2$
2. $P-4; Q-2; R-3; S-1$
3. $P-2; Q-3; R-4; S-1$
4. $P-2; Q-4; R-1; S-3$