Consider the Following Reaction at a Certain Temperature: 2HI(g) →H₂(g)

Consider the following reaction at a certain temperature: 2HI(g) →H₂(g) + I₂(g) K = 0.420
If 2.0 mol of H₂(g) and I₂(g) ,and 0.10 mol HI(g) were mixed in a 1.0-L flask,then

A) the concentration of I₂(g) would increase.
B) the value of K would increase to 400.
C) the concentration of HI(g) would increase.
D) no change would occur.
E) the total number of molecules would decrease.