Can this problem be explained

Hi Alex, For main point questions we should try to find what the argument is trying to prove- locate that statement, and then find a paraphrase of that conclusion in the answer choices. We could summarize the argument as We could eventually live on mars It would be hard, but other worthwhile things are hard Research is justified is we could eventually live on mars Also, the research needed might improve the earth as well. This is tough, since the conclusion is not exactly explicitly stated. We are told that we could live on mars, and that if it is possible the research is justified. We can conclude that this research is therefore justified- and this is supported by the additional benefits that research brings. When you are not immediately able to find the conclusion in the stimulus, be aware that sometimes it will be an unstated but clearly present idea- like in this case the fact the research is justified.

Ok well thank you I'll practice more