Please choose the correct ending to complete the given sentence: Education and Communications: [header] How to use sticky notes [title] Mark your book. [step] Sticky notes are great for marking pages or passages in a book you are studying. Just stick the note on the relevant page and maybe write a brief note or a few key words that indicate why you have marked this section.

Ending1: For example, if you are drawing a case that contains the word " organism " and " the vast portal of the rabies virus, " designate that section " organism " as " undertaking to study on opposite sides of the same page. This way you can identify the location where sticky notes from real plants are often placed. Ending2: As well as the traditional square sticky notes, you can purchase slim and tall ones which work particularly well to mark pages in a book. [substeps] These slimmer notes will mark the page without covering over much of the actual text. Ending3: [substeps] A sticky note will provide you with a visual reference to the book or text you just picked out. Keep in mind though, that your sticky notes will need to cover several blank pages or passages. Ending4: You can provide the same strategy by adding notes to a text to help you study. [substeps] Scoring one point on a text means your notes will be taken and fully absorbed by the reader.

Answer format: ending1/ending2/ending3/ending4