The writer wants to add a sentence immediately before sentence 3 to connect the evidence and commentary provided in the second paragraph to the overall argument of the passage. Which of the following choices most effectively accomplishes this goal?
The writer wants to add a sentence immediately before sentence 3 to connect the evidence and commentary provided in the second paragraph to the overall argument of the passage. Which of the following choices most effectively accomplishes this goal?
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While NASA astronauts are already experienced with the difficulties humans experience in outer space, these problems would be intensified on long-term missions.