solve the control system course problem

Determine the transfer function $C\frac{s}{D}(s)$ that relates the disturbance $D(s)$ to the output $C(s).$ Take R$($s$)=0.$

Select one:

a$.\frac{C(s)}{D(s)}=\frac{7}{-6s+2}$

b$.\frac{C(s)}{D(s)}=\frac{7s}{-6s+2}$

c$.\frac{C(s)}{D(s)}=\frac{7s}{8s+2}$

d$.$ None of these

e$.\frac{C(s)}{D(s)}=\frac{7}{8s-2}$