Match the additive manufacturing technique in Column I with its corresponding input material in Column II.

Additive manufacturing technique (Column I) Input Material (Column II) P. Fused deposition modeling 1. Photosensitive liquid resin Q. Laminated object Manufacturing 2. Heat fusible power R. Selective laser sintering 3. Filament of polymer 4. Sheet of thermoplastic or green compacted metal sheet

Additive manufacturing technique (Column I)		Input Material (Column II)
P.	Fused deposition modeling	1.	Photosensitive liquid resin
Q.	Laminated object Manufacturing	2.	Heat fusible power
R.	Selective laser sintering	3.	Filament of polymer
		4.	Sheet of thermoplastic or green compacted metal sheet

The correct answer is P-3, Q-4, R-2.

Let us break down each additive manufacturing technique listed in Column I and match it with its corresponding input material in Column II to understand why this match is correct:

1. P. Fused Deposition Modeling (FDM) matches with 3. Filament of polymer:
Fused Deposition Modeling is a widely used 3D printing process where a continuous filament of a thermoplastic polymer is heated and extruded through a nozzle. The nozzle moves to deposit the molten material layer-by-layer to build the object. Therefore, the input material is a polymer filament.

2. Q. Laminated Object Manufacturing (LOM) matches with 4. Sheet of thermoplastic or green compacted metal sheet:
Laminated Object Manufacturing is a rapid prototyping system where sheets of material (such as paper, plastic, or green compacted metal sheets) are successively glued or laminated together and cut to shape using a laser or a mechanical cutter. Therefore, LOM utilizes sheets of material as its primary input.

3. R. Selective Laser Sintering (SLS) matches with 2. Heat fusible powder (noted in the question table as heat fusible power/powder):
Selective Laser Sintering is a powder bed fusion process where a high-power laser is used to selectively fuse small particles of plastic, metal, ceramic, or glass powders into a solid three-dimensional structure. The laser sinter (fuses) the heat-fusible powder material layer-by-layer.

By matching all these pairs:
• P matches with 3
• Q matches with 4
• R matches with 2
This directly corresponds to the option P-3, Q-4, R-2.