The value of current in the 6Ω resistance is

Circuit diagram showing a network of resistors and voltage sources. A 140V source is connected in series with a 20Ω resistor. This series combination is connected in parallel with a 6Ω resistor. The 6Ω resistor is connected in series with a 5Ω resistor, which is connected in parallel with a 90V source.
a. 4 A
c. 10 A
b. 8 A
d. 6 A