B because a medium in music means style or what types of music they do. none of the other options are styles of music
I believe that it would be B.
The tense that shows progression or continuation of actions or states of being is : C. Progressive tense
This tense usually spotted from its "to be" verb in the present tense and present participle of the verb
hope this helps
What answer are you looking for here? The sentence is grammatically correct.