___________________ is the process of showing user-generated changes in the UI without waiting for the server to acknowledge that the change has succeeded.

Which option allows you to use layouts with meteor-router?

Which of the following template event hooks is called when a user leaves the page?

Which one of the following Spacebar commands are correct?

Which option allows you to add a specific sidebar to route?

The properties you set on a template instance object will be visible from the callbacks added with ___________ and __________ methods and from event handlers.