Which type of corsage is designed specifically for serving "girls" at events such as parties and weddings?

The correct choice for the type of corsage specifically designed for serving "girls" at events such as parties and weddings is the teagirl corsage. This style is characterized by its smaller size and delicate design, making it suitable for younger wearers, typically girls or young women.

Teagirl corsages are often made with lighter, more playful flowers and can incorporate bright colors and whimsical elements to align with a youthful aesthetic. The design often complements less formal occasions, which makes it a perfect fit for events like parties or weddings, where younger attendees may want to partake in the tradition of wearing a floral accessory.

The other styles, such as triangle, double, and crescent corsages, are generally more suited for adults or more formal occasions and may not convey the same youthful charm intended for younger wearers. Their designs and sizes do not typically align with the preferences or requirements for a "girl's" corsage.