Content PlayerWithin the "Learning Hub," there are four areas of content in a chapter section: Learning Hub, Resources, Practice and Explore. The "Learning Hub" is where you can see a breakdown of what is included in the particular Learning Objective, related content and a descriptive summary. The Resources area displays all related resources for the entire chapter section. The Practice section allows students to answer a few optional questions and help them check their understanding of the content. Last, the Explore section is where students can access all related content for the entire chapter and course.In the top of the "Explore" area, you can filter the type of resource you want to view. What is the default resource type filter?