In the expression $(\frac{2a}{4b-1})+2a,b,$ and $c$ are positive integers. Select all the actions that cause the expression's value to increase.

A Increase a by $1.(A,C,E)(A,C,E)$

B Increase $b$ by $1.$

C Increase $c$ by $1.$

D Decrease a by $1.$

E Decrease $b$ by $1.$

F Decrease $c$ by $1.$