How to dress for a high school dance (girls )<br>Go for a formal gown. If you are attending a formal dance like a winter formal or prom, you should go for a formal outfit. This means a formal dress that is floor length or no shorter than three inches above your knee, with a modest neckline.

Based on that paragraph can we conclude that this sentence is true?
Girls should wear casual clothing when going to prom.

Select from the following. -Yes -It's impossible to say -No