In sentence 12 (reproduced below), which version of the underlined word best conveys the writer's perspective on long space missions? with NASA's attention directed to the problems of long space missions, it is certain that scientists will come up with creative solutions to the elevated risks to human well-being in space much as they have addressed
dangers associated with shorter missions
А
(as it is now)
B
likely
с
possible
D) assured
inconceivable

possible?

Explanation: not sure

C. possible

Explanation:

"The writer’s perspective is that long-term space travel is not an immediately viable or even desirable proposition. It is necessary for the writer to concede the point expressed in sentence 12 that NASA is making a concentrated effort to solve problems associated with long-term space missions; stating that solutions are “possible” helps to convey the writer’s skepticism whether all or even many of the problems will be solved." - online assignment

what did the protagonist say?