consider the following as regards cumulative disribution function F(x)0 ≤ F(x) ≤ 1F(- ∞) = 0F(∞) = 1F(x1) ≤ F(x2) If x1 < x2 Out of above which are correct?

consider the following as regards cumulative disribution function F(x)

1.	consider the following as regards cumulative disribution function F(x)0 ≤ F(x) ≤ 1F(- ∞) = 0F(∞) = 1F(x1) ≤ F(x2) If x1 < x2 Out of above which are correct?
A.	1 and 2 only
B.	1, 2 and 3 only
C.	1, 2, 3 and 4
D.	2 and 4
Answer» D. 2 and 4