Each row of carts holds one cart as a JSON document. Open the tab to read the documents.

1. List each cart's id and its status as text.
2. List the name of every customer from Canada (CA).
3. List the id of every cart with the status abandoned. Use @>.
4. List the sku and the qty of every item in cart 3, as text.
5. How many items are there in all the carts together? Count the array elements.