There are six cities A, B, C ,D, E and F.
A is not a hill station.
B and E are not historical places.
D is not an industrial city.
A and D are not historical cities.
A and B are not alike.
Which two cities are industrial centres ?
The given information can be analysed as follows :
Since A and B are not alike and because A is industrial, B cannot be industrial but only a hill station.
So, we put a cross for B across industrial.
Clearly, A, C, E, and F are industrial centres, So, the answer is (b).