Jika f(x)=(1)/(2 x+1) dan (f o g)(x)=(x)/(2 x+3) , maka

Jika f(x)=(1)/(2 x+1) dan (f o g)(x)=(x)/(2 x+3) , maka g(x)= A. (3)/(2)-(2)/(3 x) C. (3)/(2)-(2)/(x) E. (3)/(2)-(1)/(2 x) B. (1)/(2)+(2)/(3 x) D. (1)/(2)+(3)/(2 x)