Answer: The majors greatly influence the students' future.
Explanation:
The major, as the field of study that a student chooses to focus on, greatly influences his/her future. Naturally, future employers will give advantage to those students that focused on a particular field that is directly connected to the job he/she is about to perform. It is also the student's GPA that can have a positive impact on his/her career. Namely, according to one theory (known as <em>screening theory</em>), employers will rather hire students with higher GPA. Another theory suggests that, because students often have very little working experience, their college grades are the only source of information regarding their skills and habits.
Answer: I believe it’s A.
Explanation: it explains difficulties that astronauts may face and in the following sentence it goes more in depth
No you finish the sentence: If I could I would travel to .......
