Please choose the correct ending to complete the given sentence: Youth: [header] How to improve your grade in middle school [title] Get a notebook. [step] Start by dividing one sheet of paper into three columns. Label one' reason', another' what? ', and the last one, " improvement ".

Ending1: Seeing what is distracting you will help you improve your grades in any subject whether it is hard or easy. [title] Figure out why you have low grades. Ending2: Each column is numbered to within the decimal place, which is the last number next to every punctuation. [substeps] Label each column' reason' ,' what', and the last one, " progress and grade level. Ending3: Don't focus on one single, tiny section at a time. Start at the bottom and work your way up: point, write, throw, place, move. Ending4: The two columns should be one half of the paper. [title] Write the day of class next to the rest of the papers.

Answer format: ending1/ending2/ending3/ending4