What is the major annual event organized by the National Beep Baseball Association?

The major annual event organized by the National Beep Baseball Association is the Beep Baseball World Series. This championship brings together teams from across the United States and other countries to compete in a tournament format. The event not only showcases the athleticism and skill of visually impaired athletes but also promotes awareness of beep baseball as a sport. The World Series serves as a culminating celebration of the season, allowing athletes to compete at the highest level in an inclusive and supportive environment.

The other options relate to other events or organizations but do not specifically reflect the annual event organized by the National Beep Baseball Association. The National Beep Baseball League is a governing body, while the World Blind Baseball Championship and the International Beep Baseball Cup may signify different levels of competition or involvement in the sport that are not directly associated with the annual organization by this association.