Answer: This is a very ambiguous question.
Explanation: I´m assuming that this is a fill in the blanks exercise, but it also looks like a multiple option sentence.
There's a very open fan of possible answers, I think that you need to be more specific with your options, if there are such things.
The Mars satellite will analyze the composition of the planet´s surface. If someone has good chances of winning that person will surely win. (?)
