【单选题】

Would you like to orbit theEarth inside the International Space Station Now you can take a space holiday — for a price This is due to a recant decision by top space officials of the United States, Russia,Canada, Japan and theEuropean SpaceAgency.

LastApril,American businessmanDennis Tito reportedly paid between twelve million and twenty million dollars to spend one week on the International Space Station NAS
A、had strongly objected to the Russian plan to permit a civilian on the costly research vehicleAfter two years of negotiations, space officials have agreed on a process to train private citizens to take trips to the International Space Station.
NAS
A、recently agreed to conditions that will permit Russia to sell trips to the space station. The trips are planned by anAmerican company called SpaceAdventures Limited ofArlington, Virgini
A、The company calls itself "the world’s leading space tourism company". The company has sold a space trip to Mark Shuttle- worth, a SouthAfrican businessman. InApril, Mr Shuttleworth will be launched into space from theBaikonurCosmodrome in Kazakhstan.
Experts say the change in policy at NAS
A、shows a new desire to use space vehicles for business and industrial purposes. In a speech toCongress last year, NAS
A、official Michael Hawes said that the space agency had not considered civilian travel as one of the industries it wanted to develop, However, Mr Hawes said that private space travel could now be clone as long as safety measures are observed carefully.
Yet, the average citizen will not be able to travel into space in the near future. SpaceAdventures Limited sells a training program for space flight that costs two hundred thousand dollars. That price does not include the cost of the trip to the International Space Station. That holiday in space costs twenty million dollars,
Candidates for adventure space travel trips must be in excellent health and must pass difficult health tests, They must receive a lot of training.Besides, goodEnglish can help you prepare for a space holiday. This is because all successful candidates who wish to travel to the International Space Station must be able to read and speakEnglish.
Those who want to travel in the space should ______.
A、afford the expenses of the space trip
B．pass the health check and physical training
C．speakEnglish
D．all of the above