Answer:
The answer is indeed letter D. The tiny fish flitted furiously around the glass bowl, desperately wanting to escape the glaring eyes of the house cat.
Step-by-step explanation:
Diction is an author's choice of words. According to the words they choose, authors can establish their writing style, convey a certain message, provoke an emotional reaction in readers, and establish a tone and a mood. When we read the sentences in options A, B, and C, we get to know that a boy is scared, that a child is asleep and the mother is walking quietly, and that a dog is barking at a mailman. We do get some essential information, but nothing more than that.
However, as we read letter D, we are given details that allow us to feel something. We know that the fish is "little" and, therefore, defenseless. It isn't merely swimming, it is flitting furiously because it is desperate, fearing the cat outside the bowl. The cat is not just looking at the fish, it is staring at it with glaring eyes. As we can see, the author's choice of words (flitted furiously, desperately, escape, glaring eyes) has a more powerful effect over readers. We are able to empathize with the character when we know in detail what that character feels.