What is a characteristic of Beefmaster cattle?

Beefmaster cattle are indeed characterized by their unique breeding composition, which includes being 50% Brahman, 25% Shorthorn, and 25% Hereford. This hybridization was specifically developed to create a breed that is well-suited for beef production, capitalizing on the strengths of each of the parent breeds. The Brahman contributes heat tolerance and adaptability, the Shorthorn adds good meat quality, and the Hereford is known for its ability to thrive in various environments while producing quality beef. This mix not only enhances their performance in diverse climates but also promotes traits like fertility and longevity in beef production.

The other choices do not align with the true characteristics of Beefmaster cattle. They originated in Texas rather than California, are not a dairy breed (but primarily bred for beef), and while some may have horns, horn presence can vary as there are both horned and polled (naturally hornless) individuals within the breed. The hybrid nature and focus on beef production are what primarily define Beefmaster cattle, making the composition of their breed lineage the correct characteristic highlighted in the question.