The excerpt that contains a strict internal rhyme scheme is:
"But the raven, sitting lonely on the placid bust, spoke only"
(from "The Raven" by Edgar Allan Poe).
Explanation:
1. Internal rhyme occurs when a rhyme exists within a single line of verse. In this case, the words "bust" and "just" rhyme within the same line.
2. The internal rhyme scheme in this excerpt enhances the rhythm and musicality of the poem, creating a cohesive and structured flow within the line.
3. This example showcases a strict internal rhyme scheme, where the rhyming words are placed strategically within the line to create a harmonious effect.