A class has 10 students.Teacher decided to go the tour.But the seats are available only 7.What is the probability that 7 students have to go out of 10 students?  Choose the correct choice from the following:
A) 150	B) 125	C) 120	D) 105	E) 110
out of 10 students, 7 students must be go to tour.   The probablity is 101207=120   120 possible ways to go to tour
<result>C</result>
A class has 10 students.Teacher decided to go the tour.But the seats are available only 7.What is the probability that 7 students have to go out of 10 students?