D. A company plans to make space flights available to those who can afford the ticket price. Is your answer.
It's not A. <span>Some people really want to get up in space, so now there's a market for space tourism because "get up in space" is not formal.
It's not B. </span><span>We can't all be astronauts, but lots of us dream about the idea of space travel because "We can't all be" is not that formal.
It's not C.</span><span>There was an article that told about how seven people got to make space flights because "that told about how" is not that formal.</span>
