<span>The upper right-hand corner of the note-card contains the source information.
Typically it contains the name of the author and/ or the page number where the information on the card was found. Sometimes if you're also using source cards, the upper right-hand corner will contain a source number so that you can reference your source card for the necessary information. The top of the note-card should be titled with the topic the information will address or support. </span>
If the golden word would be distinguish, I'm pretty sure the answer is C. Hope this helped, have an awesome day
