Question

how is a poems rhyme scheme marked and identified?
punctuation symbols, such
as \!?\
arabic numerals, such as
\1212\
roman numerals, such as
\i, ii, i, ii\
upper or lowercase letters,
such as \abab\

Explanation:

In poetry, a rhyme scheme is the pattern of rhymes at the end of each line. It is typically marked using lowercase or uppercase letters. Each letter represents a new rhyme sound. For example, in a four - line poem with the rhyme scheme ABAB, the first and third lines (A) rhyme with each other, and the second and fourth lines (B) rhyme with each other. Punctuation symbols are not used for marking rhyme schemes. Arabic numerals and Roman numerals are also not the standard way to mark rhyme schemes in poetry.

Answer:

upper or lowercase letters, such as "ABAB"