What is an example of alliteration?

Alliteration is a literary device where the same initial consonant sound is repeated in a series of words that are in close proximity to one another. The correct answer is an example of alliteration because it features the repetition of the "b" sound in "big," "brown," and "bear." This repetition creates a rhythm and musical quality in the language, enhancing its overall effect and making the phrase more memorable.

In the other choices, while they each contain descriptive language, they do not exhibit the same level of consonant sound repetition that defines alliteration. For example, "The sound of the screeching owl" includes varied sounds, and "A white cat sat quietly" and "The bright stars twinkled in the sky" similarly lack that focus on the initial consonant sound. The effectiveness of alliteration lies in its capacity to draw attention to the words and often to create a poetic or whimsical effect, which is clearly evident in the chosen sentence.