Step 1: Understanding the Concept:
Block printing presses a carved block on the cloth again and again. The machine version of this idea uses engraved metal rollers instead of wooden blocks.
Step 2: Check Option (A) Screen printing.
Screen printing forces paste through a mesh screen with a stencil. It does not use a pressing block. So (A) is WRONG.
Step 3: Check Option (B) Roller printing.
In roller printing, copper rollers engraved with the design pick up paste and roll it on the cloth. The rollers do mechanically what the printer does by hand with a block. The printing is continuous and fast. So (B) is CORRECT.
Step 4: Check Option (C) Hand printing.
Hand printing is not a machine. Block printing itself is a hand printing method. So (C) is WRONG.
Step 5: Check Option (D) Heat transfer printing.
This method moves a design from paper to cloth by heat. It has no link to blocks. So (D) is WRONG.
Final Answer:
Roller printing is the machine counterpart of block printing. This is option (B).