Which of the following breeds is known for its muscle characteristics and originated in England?

The breed known for its muscle characteristics and that originated in England is the Suffolk. This breed is particularly recognized for its impressive conformation, exhibiting a strong muscular build that contributes to its overall robustness and suitability for meat production. Suffolks are characterized by their black faces and legs, and they are commonly used in commercial sheep production, primarily for their high-quality lambs.

In comparison to other breeds listed, the Dorper, which originated in South Africa, is known for its adaptability and hardiness but is not specifically noted for its muscle characteristics compared to Suffolk. The Romney breed, originating from New Zealand and the UK, is primarily utilized for wool and also possesses some meat qualities, but it does not emphasize muscle in the same way. The Columbia breed, developed in the United States, is a crossbreed focusing on fleece production, which may not highlight muscle characteristics as much as the Suffolk does. Thus, the Suffolk stands out as the breed known specifically for its muscle and its English origins.