Correct answer - "Specify a ProjectionExpression" : A projection expression is a string that
identifies the attributes you want. To retrieve a single attribute, specify its name. For
multiple attributes, the names must be comma-separated.
Incorrect:
"Use a FilterExpression" - If you need to further refine the Query results, you can optionally
provide a filter expression
"Use the --query parameter" - The Query operation finds items based on primary key values
"Use a Scan" - This would return all the data from the table.