What are form instructions used for?

Form instructions are designed to provide clarity and guidance to users filling out a form. This functionality helps ensure that individuals understand the purpose of specific fields, what information is required in each, and any other relevant details that might aid them in completing the form accurately. By linking to additional information or offering clarifications on fields, form instructions can effectively enhance user experience and increase the likelihood of successful form submissions.

The other options do not accurately reflect the purpose of form instructions. Decorative text does not serve the primary function of improving form completion, and enforcing strict field completion is typically managed through form validation mechanisms rather than instructional text. Limiting the number of submissions relates more to settings and configurations rather than providing guidance on form fields. Thus, the role of form instructions is focused on user assistance and information clarity, which is captured by the correct answer.