Read the excerpt.

from “the wild swans at coole” by william butler yeats the trees are in their autumn beauty, the woodland paths are dry, under the october twilight the water mirrors a still sky; upon the brimming water among the stones are nine-and-fifty swans. the nineteenth autumn has come upon me since i first made my count; i saw, before i had well finished, all suddenly mount and scatter wheeling in great broken rings upon their clamorous wings.
while the speaker in “the wild swans at coole” is counting the swans, what do they suddenly do?

swim away

begin to sing

take flight

approach him