Which pair of lines from “lines written in early spring” by william wordsworth represents the strongest example of alliteration?

i heard a thousand blended notes,
while in a grove i sate reclined,
in that sweet mood when pleasant thoughts
bring sad thoughts to the mind.

to her fair works did nature link
the human soul that through me ran;
and much it griev’d my heart to think
what man has made of man.

through primrose-tufts, in that sweet bower,
the periwinkle trail’d its wreathes;
and ‘tis my faith that every flower
enjoys the air it breathes.