Which lines best depict a contemplative mood?
A) Around us shadows and the wind/Listened for what was never spoken.
B) The sun is bright,—the air is clear./The darting swallows soar and sing.
C) A pair of night-hawks windily sweep, or fall,/Booming, toward the trees.
D) All things rejoice in youth and love,/The fulness of their first delight!