What style of music blends Celtic folk music and rock together?

The correct choice is A, Celtic Rock, because this style of music specifically combines elements of traditional Celtic folk music—such as traditional instruments like fiddles, flutes, and bagpipes—with the energy and instrumentation of rock music. This fusion creates a distinct sound that maintains the melodic and rhythmic qualities of Celtic music while incorporating the electric guitars, bass, and drums characteristic of rock. The harmonious blend of these two genres results in a vibrant and engaging musical experience that resonates with fans of both styles.

The other choices represent different genres that do not have the same combination of cultural influences found in Celtic Rock. Jazz Folk, for example, would blend elements of jazz with folk music but does not inherently include rock components. Blues Rock and Pop Rock both pertain to specific styles within rock music with their own characteristics but do not draw from Celtic folk traditions.