Each answer goes to a file, as text, with >.

1. The names of the regions in the United States (they start with us), and no others, to ~/us-regions.txt.
2. The zone id of us-east-1c, and nothing else, to ~/zone-id.txt.
3. Every zone of us-east-1 with its name and its state, one zone per line, to ~/zones.txt. Look at the full answer first to find the field that holds the state.