How does the sentence end?

So 
Pick your answer from:
+ Adam hated to be an astronaut so Adam can visit the stars out in space, while Benjamin is scared of the unknown.;
+ Benjamin hated to be an astronaut so Adam can visit the stars out in space, while Benjamin is scared of the unknown.;
Benjamin hated to be an astronaut so Adam can visit the stars out in space, while Benjamin is scared of the unknown.