Five capitals A, B, C, D and E are connected by different modes of transport as follows.
A and B are connected by boat as well as by rail.
D and C are connected by bus and by boat.
B and E are connected only by air.
A and C are connected only by boa t.
E and C are connected by rail and by bus.
Which of the following pair of capitals are connected by any of the routes directly (without going through any
other capital)?