The correct answer is A. till. Till is a type of glacial deposit that is unsorted and unstratified. It is made up of a mixture of rock, sand, silt, and clay that has been transported and deposited by a glacier. Till is typically found in the form of hills, ridges, and mounds at the front of a glacier or in the valleys that have been carved out by glaciers.
Moraine is a type of glacial deposit that is sorted and stratified. It is made up of a mixture of rock, sand, silt, and clay that has been transported and deposited by a glacier. Moraine is typically found in the form of long, winding ridges that are parallel to the direction of ice flow.
Glacial sand is a type of glacial deposit that is made up of sand-sized particles of rock. It is typically found in the form of outwash plains, which are broad, flat areas that are covered in sand and gravel.
None of the above is not a correct answer.