In this example of a woodblock print, the or chosen locations that ensure the colors align correctly, were likely placed in the corners by the artist.
a.
registration points
c.
brayers
b.
gouges
d.
woodblocks

a.

registration points

Explanation:

In this example of a woodblock print, the woodblock, or chosen locations that ensure the colors align correctly, were likely placed in the corners by the artist.

this is correct

soft,hard and rough for soft would be a pillow or a stuffed animal hard wood floor or a table rough paint