What classes of uniforms does the Army specify for formal occasions?

The classes of uniforms specified for formal occasions in the Army are Class A and Class B. Class A uniforms are designed for formal events, providing a professional and polished appearance typically worn during ceremonies, official functions, and public appearances. They often include the Army green service uniform or the Army blue dress uniform, which showcase the soldier's rank and awards.

Class B uniforms are less formal but still appropriate for many official events, featuring the same components as Class A uniforms, minus the service coat. These uniforms maintain a degree of professionalism, making them suitable for non-combat settings while still representing the Army with dignity.

The other options do not accurately reflect the specific classes of uniforms designated for formal occasions. Dress Blues and Service Uniforms refer to particular types of uniforms rather than the broader classification of Class A and Class B. Combat and Utility uniforms are typically used in operational settings and are not intended for formal events. Similarly, Field and Evening wear are not recognized classifications within Army uniform standards. Therefore, Class A and Class B uniforms are the correct choices for formal occasions due to their adherence to tradition and the need for a formal appearance in various military contexts.