Which of the following is a type of till landform?

A drumlin is a type of till landform that is formed by glacial processes. It consists of a streamlined, elongated hill made up of glacial till, which is the unsorted material deposited directly by the ice. Drumlins typically have a distinct shape, tapering at one end and broader at the other, reflecting the direction of glacial movement. They are often found in groups, known as drumlin fields, and provide important insights into past glacial activity and ice flow patterns.

In contrast, the other options are associated with different geological processes. An outwash plain is formed by sediment deposited by meltwater from a glacier, while a floodplain results from river processes and alluvial fans are created where stream water slows down and loses energy, depositing sediment typically at the base of hills or mountains. These landforms are different from the till-based features represented by drumlins.