Final answer:
S. bovis is categorized in Lancefield Group D, which is part of a classification system based on carbohydrates on the bacterial surface used to distinguish between different species and strains of Streptococcus.
Step-by-step explanation:
S. bovis is part of the Lancefield Group D. Grouping of Streptococcus species, such as S. bovis, into Lancefield groups is based on the carbohydrates present on the bacteria's cell surface.
The Lancefield groups, developed by Rebecca Lancefield, classify beta-hemolytic streptococci into different groups ranging from A to H and K to V. This classification helps in identifying and treating bacterial strains by understanding the virulence factors and potential diseases associated with each group.