Final answer:
The stanza from "My Papa's Waltz" follows an ABAB rhyme scheme, and the words "dizzy" and "easy" constitute a slant rhyme.
Step-by-step explanation:
The rhyme scheme of the stanza from "My Papa's Waltz" is ABAB. The lines "Could make a small boy dizzy" and "Such walking was not easy" are examples of slant rhyme, where the end sounds are similar but not identical. "Dizzy" and "easy" do not have a perfect correspondence of sounds as in a traditional rhyme; instead, they echo each other in a subtle, approximate manner, which is characteristic of slant rhyme. Therefore, the correct answer is (a) ABAB, "dizzy" and "easy" are slant rhymes.