Correct answer - "Deploy to a stage" : Each stage is a snapshot of the API and is made available
for the client to call. Every time you update an API, which includes modification of methods,
integrations, authorizers, and anything else other than stage settings, you must redeploy the
API to an existing stage or to a new stage. As your API evolves, you can continue to deploy it
to different stages as different versions of the API.
Incorrect:
"Enable Custom Authorizer" - This allows access control to your API
"Use Stage Variables" - They act like environment variables and can be used in your API setup and
mapping templates
"Check IAM permissions" - IAM permissions affect access but you need to deploy