Question

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

Explanation:

To identify a poem's rhyme scheme, we use letters (usually uppercase) to mark lines with the same rhyme. For example, in a poem with rhyme scheme ABAB, the first and third lines (A) rhyme, and the second and fourth lines (B) rhyme. Roman numerals, Arabic numerals, and punctuation symbols are not used for marking rhyme schemes.

Answer:

A. upper or lowercase letters, such as "ABAB"