- AIn each of the ward's four waterloggings of the past decade the ward's drains stood open and half empty, the water having come not from rain falling on Bhagwanpur but from the canal escape a kilometre above it overtopping its bank
- BThe storm drain cost 2.4 crore rupees, met out of the state finance commission grant to the municipality
- CTwice in the past thirty years the ward's rain in an hour has come within a centimetre of the heaviest hour on record
- DThe storm drain has been laid to a section wider than the state's manual lays down for a ward of Bhagwanpur's size
Step-by-Step Solution
The engineer has evidence about one route by which water arrives — rain falling on the ward — and draws a conclusion about waterlogging from every source. The option shows that the ward's actual waterloggings have come by a route the drain's capacity has nothing to do with, so a drain equal to the worst hour of rain in thirty years may leave the ward exactly as wet as before. The cost of the drain and the source of the grant bear on value for money. The near-record hours tell us the drain will be tested at its designed duty and, if anything, help the engineer. A section wider than the manual requires makes the drain better at the very thing the engineer measured, which strengthens his premise while leaving his over-broad conclusion untouched.
Answer: A) In each of the ward's four waterloggings of the past decade the ward's drains stood open and half empty, the water having come not from rain falling on Bhagwanpur but from the canal escape a kilometre above it overtopping its bank