Please choose the correct ending to complete the given sentence: Education and Communications: [header] How to create business letter white space [title] Set uniform margins on the left and right sides of the document. [step] It is suggested that margin sizes be 1-1.5 inches (3-3.5 cm). [title] Keep all your paragraphs lined up on the left side throughout your letter.

Ending1: [title] Center your paragraphs in an even manner [title] Use a ruler to make a line to mark each paragraph in your letter. [step] Note that this line will remain the same size as your side all the way across from it. Ending2: [step] Don't cut near to the top or the left margin to keep your paragraphs grammatically consistent. [title] For each paragraph, evaluate a paragraph. Ending3: [step] This space provides enough margin to allow the postal service to fill in key information freely. [title] Tuck in any extra vocabulary words or punctuation into the spaces provided by the main paragraphs. Ending4: [step] Do not make indentations unless you are using bullets to clarify a point. [substeps] Avoid " justifying " or " align righting " your letter.

Answer format: ending1/ending2/ending3/ending4