Question

read the passage. then answer the question. space flights although private companies have begun to take people into space for recreational purposes, space flight should only be used for scientific missions with experienced astronauts. astronauts are highly trained and well prepared for space missions, which can be dangerous. they also must be in excellent health; they are required to have medical screenings every year. this is not required for regular passengers, and some could become ill or injured on space flights. in addition, there are serious environmental concerns regarding recreational flights. it would be best to discourage them at this point. what is the first piece of evidence the author uses to argue that only experienced astronauts should go into space? a they are very highly trained. b they are in excellent health. c they do not damage the environment. d they do not travel on private spacecrafts.

Explanation:

The passage first states that astronauts are highly trained and well - prepared for space missions. This is the initial evidence given for why only experienced astronauts should go into space.

Answer:

A. They are very highly trained.