PLZ HELP ME ILL MARK BRAINLEIST IF YOUR RIGHT We’re Going to Mars!

Part A

What is a central idea of "We're Going to Mars!"?

NASA has started providing public transportation to space

Living on Mars will be less expensive than living on Earth

NASA has a strategy underway to colonize Mars

Private companies have begun setting up colonies in space
Part B

Which detail best supports the answer to Part A

“Once everything is in place, the colonies are established, and deep space travel is normalized, someone could move to Mars for as little as $100,000.”

“Phase 1: requires that we build bigger and better spacecraft. This will transport the crew with all of the supplies it needs to survive.”

“NASA currently has plans to send a human mission to Mars by 2033. There are five phases, or steps.”

“NASA's costs are much higher. It thinks that such a mission would ultimately cost $1 trillion.”