Use the paragraph to answer the question
The platypus is an Australian mammal that does not fall neatly into classification. It is one of only two mammals (the other being the echidna) that bear young by laying eggs. In some respects, the platypus has a tail like a beaver's and a furry body similar to an otter's. Its unusual hybrid of parts makes it well-suited for its largely aquatic life. The platypus uses its Webb feet to paddle through the water, and its tail serves as a kind of rubber for steering while underwater, the platypus uses its bill to scoop up bits of food, such as insects and shellfish, from the water's bottom. The platypus also scoops up bits of gravel, which grind up the food as the platypus surfaces, its consumes its meal.
Which idea from the paragraph is important to include in a summary?
a. The platypus collects food such as insects and shellfish.
b. The platypus is a rare type of mammal that bears its young by laying eggs.
c. The platypus is a fascinating animal.
d. The platypus paddles through the water.