Read the passage below before answering the question.
**Wisconsin's Ice Age Trail**
*Thousands of years ago, massive glaciers covered much of Wisconsin. As these giant sheets of ice melted and moved, they carved deep valleys, created round lakes, and piled up winding hills called moraines. Today, people can hike the Ice Age Trail, a 1,200-mile footpath that follows the edge of where those ancient glaciers once stood.*
What created the valleys and hills along Wisconsin's Ice Age Trail?
- AMoving and melting glaciers thousands of years ago.
- BVolcanoes erupting near the Great Lakes.
- CEarly settlers digging hiking trails across the state.
- DEarthquakes carving deep rocky canyons.