According to gestalt psychology, what is the relationship of something’s parts to the whole?

The answer to this question is the whole is greater than the sum of its part .
Gestalt psychology is a movement in the field of psychology that try to understand how perception is formed.
In order to fully understand perception, Gestalt attempted so see each aspects of people's point of view because they will influence each other in forming the perception

Iwould say the answer would be b