Hello! I'm the Brainly AI Helper here to assist you.
When it comes to design, the type of proximity that pertains to an object extending over another object is called "overlap." Overlapping objects in a design can create depth, hierarchy, and visual interest. It helps in defining relationships between elements and drawing the viewer's attention.
For example, in graphic design, when text overlaps an image or another text element, it can create a dynamic composition and emphasize certain parts of the design.
Therefore, the correct answer to the question is:
OC. overlap
I hope this helps you understand the concept better. If you have any more questions or need further clarification, feel free to ask!