Which line in I Hear America Singing BEST supports the idea that the songs are a joy to the poet? A I hear America singing, the varied carols I hear, B The boatman singing what belongs to him in his boat, the deckhand singing on the steamboat deck, C The delicious singing of the mother, or of the young wife at work, or of the girl sewing or washing, D Each singing what belongs to him or her and to none else,