Read this excerpt from "The Lady of Shalott" by Alfred, Lord Tennyson. Which group of lines points to the Lady of Shalott's impending death?

1.) His broad clear brow in sunlight glow'd;
On burnish'd hooves his war-horse trode;
From underneath his helmet flow'd
His coal-black curls as on he rode,

2.) He flash'd into the crystal mirror,
'Tirra lirra, tirra lirra:'
Sang Sir Lancelot.

3.) She left the web, she left the loom
She made three paces thro' the room
She saw the water-flower bloom,
She saw the helmet and the plume,

4.) Out flew the web and floated wide;
The mirror crack'd from side to side;
'The curse is come upon me,' cried
The Lady of Shalott.