2. What is the most effective revision to make in sentence 6? One half of the animal's brain enters a sleep state, or the other half of
the animal's brain stays alert.
0
As one half of the animal's brain enters a sleep state, the other
half stays alert.
One half of the animal's brain enters a sleep state, the other half of
the brain stays alert.
o
As one half of the animal's brain enters a sleep state, there is the
other alert half of the animal's brain.