Answer the questions that follow after reading the poem below.
the tide rises, the tide falls
the twilight darkens, the curlew calls;
along the sea-sands damp and brown
the traveler hastens toward the town,
and the tide rises, the tide falls.

darkness settles on roofs and walls,
but the sea in the darkness calls and calls;
the little waves, with their soft, white hands,
efface the footprints in the sands,
and the tide rises, the tide falls

the morning breaks; the steeds in their stalls
stamp and neigh, as the hostler calls;
the day returns, but nevermore
returns the traveler to the shore,
and the tide rises, the tide falls.

what is the rhyme scheme of this poem?

aabba, aabba, aacca
aabab, abbab, accac
aabba, aacca, addda
none of these