Arctic terns raise their families on the Arctic tundra. Then, in winter, they fly to the edge of the Antarctic ice. The tern covers over 21,750 miles each year, which is nearly the distance around the Earth. This is longer than the migration of any other known animal. The tern almost never lands. It performs nearly all of its tasks while up in the air, as most of its life is spent there. Once every one to three years, the Arctic tern lands in order to nest. Then, when the tern has finished nesting, it takes off and starts another long southern migration. 4
Which topic sentence fits best with the above details?
A.
Though they resemble seagulls, Arctic terns have webbed feet like ducks.
B.
Bird-watching is a hobby that is popular with people of all ages.
C.
The diet of the Arctic tern consists of insects, shrimp, and small fish.
D.
The Arctic tern is a seabird that is known for its long migration.