Final answer:
Kyle should insert the text into the header of the document, ensuring it will automatically appear at the top of each page without the need for manual copy and paste or adjustment of font size.
Step-by-step explanation:
If Kyle needs the same text to appear at the top of each page in a document, the best method to achieve this is to insert the text into the header of the document. This can be done by double-clicking the top of the page in a word processing application like Microsoft Word, which will open the header for editing. Unlike manually copying and pasting the text on each page, using the header ensures that the text will automatically repeat on every page. The "Repeat Header Rows" feature is typically used in tables to make the header row appear on each page of a table when it spans multiple pages. Inserting text into the document footer would place the text at the bottom of each page, which does not meet the requirement. Adjusting the font size has no impact on whether text appears at the top of each page.