The answer is A) Hector Berlioz.
Berlioz wrote Grand Messe des Morts in 1837, a requiem requiring 210 singers, a very large orchestra, and four brass bands.
C and D. Pop art has many vibrant colors that are used on many pop culture idols. For example, Andy Warhol does many pop art works. Look him up if you want :)
Accent is the answer to your q