network theorem

for the network shown below I=(0.2 V-2)A, (I=the current delivered by the voltage source V). The thevenin voltage Vth and resistance Rth for the network N across the terminal AB are

a) - 10V, 5 ohm
b)10V, 5 ohm
c)-10V, 0.2 ohm
d)10V, 0.2 ohm