Dylan Thomas’ do not go gentle into that good night

Explanation:

Tercets are stanzas with three lines. In the context of the poem "Do Not Go Gentle into That Good Night," Dylan Thomas uses tercets to structure the poem. This poem is written in the form of a villanelle, a specific type of poem with a strict structure.

A traditional villanelle has 19 lines split into 5 tercets and a quatrain. In this case, Dylan Thomas follows this structure in his poem, utilizing tercets to convey his message effectively.

Since the question specifies the type of stanzas used in the poem, the correct answer is Tercets (B). This choice aligns with the structure of the villanelle, which is the poetic form employed by Thomas in "Do Not Go Gentle into That Good Night."

It is important to note that other options, such as A) couplets and C) quatrains, do not accurately reflect the stanza structure of the poem. While there is a quatrain present in a traditional villanelle, the primary stanzas used in this poem are tercets.