what makes a design to look one single unit.

a.
Dot/Line

b.
Form

c.
Size

d.
Unity

The answer is d. Unity. To make a design look like one single unit, it needs to exhibit unity. Unity refers to the visual cohesion and harmonious arrangement of various elements in a design. It ensures that all the different parts of a design work together to create a sense of wholeness and completeness.

To achieve unity in a design, you can consider the following principles:

1. Repetition: Using consistent visual elements, such as colors, shapes, or patterns, throughout the design to create a sense of continuity.

2. Proximity: Grouping related elements closer to each other to visually connect them and establish a relationship.

3. Balance: Distributing the visual weight of elements in a design symmetrically or asymmetrically to create equilibrium and avoid a fragmented appearance.

4. Alignment: Aligning elements along an imaginary vertical, horizontal, or diagonal line to create a sense of order and organization.

5. Contrast: Balancing contrasting elements, such as light and dark colors or thin and thick lines, to create visual interest and highlight important components.

By applying these principles, you can ensure that your design visually holds together as a cohesive and unified whole.