Which two principles of visual design are involved in grouping related things together, and separating unrelated things?

Which two principles of visual design are involved in grouping related things together, and separating unrelated things?

a.     Color and contrast

b.     Proximity and White Space

c.      Alignment and Grids

d.     Font size and font style

Which of the following is not a goal of visual design?

a.     Messaging

b.     Following