Because of which Gestalt principle do we often perceive a series of dots on a printed form as a "solid" line

A)  constancy 
B)  closure 
C)  symmetry 
D)  similarity

Gestalt Principle

A theory that proposes objects are viewed in their entirety before being broken down into individual components.

Dots

Small, round marks used in a variety of contexts, including visual presentations, data visualization, and written material for punctuation purposes.

Closure

The psychological phenomenon where an individual seeks a sense of completeness or resolution to an emotional or traumatic event.