Which of the following lines contain alliteration?

Meanwhile, his friend, through alley and street 1

Wanders and watches with eager ears, 2

Till in the silence around him he hears 3

The muster of men at the barrack door, 4

The sound of arms, and the tramp of feet, 5

And the measured tread of the grenadiers 6

Marching down to their boats on the shore. 7


Lines 1 and 2
Lines 2, 3, 4
Lines 6 and 7
Line 4 only