Final answer:
The correct answer is option c) Incising lines or images into a plate.
Step-by-step explanation:
Traditional intaglio printing involves incising lines or images into a plate. This technique dates back to medieval times and is used to create detailed images through a process where an artist carves into a metal plate, often copper, using a sharp instrument such as a burin. The incised channels are then inked, and the surface of the plate is wiped clean, leaving the ink only in the incised areas.
When paper is applied to the plate and run through a press under high pressure, the ink from these channels is transferred onto the paper to produce the print. Engraving is one such intaglio process, known for producing intricate designs.
Aquatint is another technique within intaglio printmaking, which allows for tonal variations. It involves applying a mordant or rosin to the metal plate to create a texture that holds the ink, enabling the artist to achieve shaded effects in the final print.