Placing a photograph next to the text to which it refers in a report is adhering to the visual design principle ofSelect one:a.alignment.b.contrast.c.proximity.d.simplicity.

To answer this question, let's analyze each visual design principle:

a. Alignment

• This principle refers to lining up text or images on a page to create order and balance. While placing a photograph next to relevant text could involve alignment, it's not the primary principle at play.

b. Contrast

• This principle involves using differing shapes, sizes, colors, or other elements to make certain parts of a design stand out. It doesn't directly relate to placing a photograph next to relevant text.

c. Proximity

• This principle involves grouping related items together to create a relationship between them. Placing a photograph next to the text it refers to is an example of the principle of proximity.

d. Simplicity

• This principle involves keeping designs uncluttered and easy to understand. While placing a photograph next to relevant text could contribute to simplicity, it's not the primary principle at play.

Therefore, the correct answer is c. Proximity. By placing a photograph next to the text it refers to, you're grouping related items together, which is the principle of proximity in visual design.