Please choose the correct ending to complete the given sentence: Education and Communications: [header] How to put on academic robes for a graduation ceremony [title] Wear formal dress under your gown. [step] Your graduation is considered a formal event, so you are expected to wear formal dress under your gown. Before you put on your gown, check that your outfit is appropriate for graduation.

Ending1: [substeps] For men, this could be pressed slacks or dress pants and a collared shirt or tie. For women, this could be a formal dress and heels, or pressed slacks, a blouse, and dress flats. Ending2: [substeps] Either show off your graduation uniform by wearing a variety of beads, pleats, polka dots, or other decorative pieces. Avoid traditional patterns or letters on your clothes, and keep your gown simple. Ending3: [substeps] For instance, you can choose shorts in a color like navy blue to spice up your " formal " look. Or, you can choose sweatpants with a dress, for example. Ending4: Avoid interrupting the attendees as they are speaking and putting on your gown as soon as it is placed in front of you. [substeps] You may wear a dress under a gown whether you're attending a formal or informal event, but it's still your choice.

Answer format: ending1/ending2/ending3/ending4