Which elements are commonly specified for DMV forms?

B is the correct choice because DMV forms are typically designed with specific guidelines to ensure clarity, readability, and uniformity across documents. The size, font, and spacing are crucial as they affect how easily the information can be processed and understood by both the public and DMV staff. The ink color must also be selected carefully to ensure that it contrasts well with the background and is easy to read.

While other options mention certain aspects like color of printing or type of paper, these do not encompass the broader selection of specifications necessary for proper form design. Focusing solely on content requirements or the type of paper fails to address the importance of overall presentation and accessibility, which are just as vital for ensuring effective communication through these forms.