Final answer:
The subject of this question is Arts. The mention of 'sweet little Oompa-Loompas' indicates a reference to the popular novel 'Charlie and the Chocolate Factory' by Roald Dahl.
Step-by-step explanation:
The subject of this question is Arts. The mention of 'sweet little Oompa-Loompas' indicates a reference to the popular novel 'Charlie and the Chocolate Factory' by Roald Dahl. In the book, Oompa-Loompas are small workers in Willy Wonka's chocolate factory who sing songs and perform factory tasks.