What is the rhyme scheme pattern for this poem *(look at the ending words and which ones rhyme)

*
My candle burns at both ends

it will not last the night

but ah oh my friends--

it goes a lovely light

ABAB
ABBA
AABB
ABCD

AABB

The rhyme scheme pattern for the poem is AABB. The ending words of the first and second lines ("ends" and "night") as well as the ending words of the third and fourth lines ("friends" and "light") rhyme with each other.