The correct answer is ABBA
Explanation:
Rhyme occurs when there are similar or the same sounds in a poem. Moreover, a rhyme scheme occurs when the same sounds are repeated at the end of verses in a stanza (groups of verses). This can be identified if you use letters from A to Z to mark the same sounds. In this way, in the stanza presented the scheme is ABBA as shown below:
Your mother Eire is always young, (A)
Dew ever shining and twilight gray; (B)
Though hope fall from you or love decay, (B)
Burning in fires of a slanderous tongue. (A)
Considering "young" and "tongue" rhyme and these verses should be marked with A, while "gray" and "decay" rhyme and should be marked with B.