The platypus is a different looking animal that lives in the rivers and coastal regions of Eastern Australia, is a furry mammal, but it lays eggs. it lives near the water and uses its webbed feet to swim, Its nose resembles a duck bill which helps it as it gathers food such as shrimp. When the platypus swims underwater it closes both its eyes and ears. Which type of structures on the last example can represent?

A. Chronological.

B. Cause and Effect.

C. Compare and Contrast.

D. Problem and Solution.

E. Sequence / Process.

F. Spartial / Descriptive​​