A2. From the table, we can read the price for $1 \mathrm{~km}$ of urban or out-of-town transport, for five transport providers. Vinko travels $20 \mathrm{~km}$ in the city and $80 \mathrm{~km}$ out of town in one month. With which transport provider would it be most cost-effective for him to travel if he decides to use the services of the same provider?
(A) With provider $A$.
(B) With provider $B$.
(C) With provider $C$.
(D) With provider $D$.
(E) With provider $E$.

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