Answer:
number of possible selection
2
1
3
6
4
10
5
written as C(n,r)=no. of possible selections
C(2,1)=2
C(2,2)=1
C(3,1)=3
C(3,2)=3
C(3,3)=1
C(4,2)=6
C(4,3)=4
C(5,2)=10
C(5,3)=10
C(5,4)=5
#hope it helps
#correct me if im wrong
