In this sentence Yellow and black would be the compound subject. Yellow and black are both subjects and the use of the word 'and' lets you know it is a compound subject.
The answer is C. This is because C not only says that kale is nutritious but also classifies it as a vegetable.
Answer:
I'm assuming that you only need one line rather than an entire poem:
His critics are squishable ants.
Bart was a raging tiger when he lost his lunch.
Homer has the heart of a lion.
Explanation: