The rhyme scheme of the stanzas provided from "Do Not Go Gentle Into That Good Night" is aba aba.
The first and third lines end with "night" and "light," creating an "a" rhyme. The second line ends with "day," creating a "b" rhyme, and the fourth line ends with "right," which matches the second line, thus confirming the "b" ending. Therefore, the final rhyme scheme for the stanzas is correctly represented as aba aba.