What can a woman wear to a black tie optional event?

For a black tie optional event, a woman can choose to wear a floor-length evening gown or a sophisticated cocktail dress. Elegant accessories, such as statement jewelry and a chic clutch, can enhance the look. Alternatively, a tailored jumpsuit or a stylish pantsuit may also be appropriate, especially when paired with formal heels. Ultimately, the key is to balance sophistication with personal style.