What is the purpose of inserting header and footer in the document?

دستاویز میں ہیڈر اور فوٹر ڈالنے کا مقصد کیا ہے؟

To mark the starting of a page

To enhance the overall appearance of the document

To allow page headers and footers to appear on document when it is printed

To make large document more readable

The purpose of inserting header and footer in the document to allow page headers and footers to appear on the document when it is printed.