the answer for me, personally, is letter d.
My answer is Documentary
Cause it's relevantly new type of art. Little over 100 years old. First movie was made at the end of 19th century. Other type of arts are old to compare with cinema/ movie making. For example, Architecture, Literature and Paintings are many thousand years old.
Modern art period starts 1860s to the 1970s. The term is usually associated with art in which the traditions was broken to create new styles and trends.