The rhyme scheme of the stanzas presented in "Do Not Go Gentle Into That Good Night" by Dylan Thomas is abaaba.
This is evidenced by examining the end sounds of each line:
- "night" (a)
- "day" (b)
- "light" (a)
- "right" (a)
- "lightning" (b)
- "night" (a)
Thus, the correct answer is abaaba.