The answer to your question is D, I have just finished my test and got 100%, although i do have to say all you have to do is look up the painting and you can find out that it is a tempera and D is the only option with tempera in it
Answer: D. increased in importance, sometimes providing special effects and overshadowing the voices.
Explanation: In nineteenth-century opera, the orchestra <u><em>increased in importance, sometimes providing special effects and overshadowing the voices</em></u>. An opera is a form of art in which the musicians and the singers combine music and text. It is usually performed in opera houses accompanied by an orchestra. The Romantic period was dominating the arts and the opera. There was a burst of interest for historic themes, supernatural beings, and nationalism, and these theme were displayed in operas.