Read the excerpt from "The Charge of the Light Brigade."

HALF a league, half a league,
Half a league onward,
All in the valley of Death
Rode the six hundred.
"Forward, the Light Brigade!
Charge for the guns!" he said:
Into the valley of Death
Rode the six hundred.

Which describes the rhythm and meter in the poem?
a pattern of one unstressed syllable followed by two stressed syllables
a pattern of two stressed syllables followed by one unstressed syllable
a pattern of one stressed syllable followed by two unstressed syllables
a pattern of two unstressed syllables followed by one stressed syllable