Read the passage.

Rovers are the best way to explore other planets. By sending rovers into space, we can learn about the universe without having to send people. Rovers are good at gathering information and measuring the planet they are on. They are also much more durable than humans and can survive much longer on a foreign planet. They are expensive to make, but the information they send back to Earth is worth the money it takes to build them.

Which statement best defends the author’s claim with additional evidence?

A) The Curiosity rover cost more than two billion dollars to design.
B) Rovers are interesting because of how their wheels are constructed.
C) Rovers are named by the scientists at NASA when they are completed.
D) The Curiosity rover will be able to explore Mars for up to 10 years.