What does 'within the four corners' mean regarding a document?

The phrase 'within the four corners' refers to the principle that a document should be interpreted based solely on its content and language, which is contained within its physical boundaries—the four corners of the pages. This means that the document is viewed as a complete and self-contained entity, with its terms, provisions, and intentions evident from the text itself. It emphasizes that any interpretation should come from the words written in the document, rather than considering outside influences or external evidence. This is important in legal contexts, where the intention of the parties must be derived directly from the document without reliance on extrinsic materials. Therefore, option C captures the essence of this principle accurately by stating that the document speaks for itself, limiting interpretation strictly to its text.