Final answer:
The person who typically signs a short form is the person who approved it, indicating their review and authorization of its content.
Step-by-step explanation:
The query regarding who signs the short form seems to pertain to a business or legal context where documents and forms often undergo various stages of preparation and approval. In such contexts, a short form is typically a condensed version of a longer document that includes essential information and agreements. The person who signs the short form is usually the one who approves the content, which would most closely be option 4) The person who approved the short form. This signature is an indication that they have reviewed the contents and are authorizing whatever the form represents.
It's important to recognize that in different contexts or organizations, the specific procedures about who signs a form could vary. Consequently, while the approver often signs the short form, the actual signer might be predefined by the organization's policies or the nature of the document.