D: the children giggled at the elephants spouting plumes of water through their trunks.
Actually..... all of them are correct!
The difference is whether the word "the orchestra" needs a plural or singular verb. In American English a singular verb is needed (so American English would only accept options a) and c) ) but in British English both forms are acceptable: so in British English all four sentences are correct.
Well, it’s bad luck to say the title “Macbeth” within a theatre space, so you could start with setting that rule down. Also, you could go about it the way that Orwell did in “Animal Farm,” using different characters and settings to relay the same plot. For example, Orwell used barnyard animals to represent the communists. You could use Trump as an example because he was a “nobleman” who schemed to gain power. Something like that?