Explanation
Solution
Step 1: Horizontal Road Analysis (North to South)
From the data provided in the previous question (Que. 72):
Evaluating Option 1 & 3:
Step 2: Vertical Road Analysis (West to East)
Let's look at the East-West placement of roads A,B, and C:
This gives the West-to-East sequence: B→(1/2 km)→C→(1/2 km)→A.
Evaluating Option 2 & 4:
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Option 2: D and C are parallel, but we don't have enough information to link the D/E group's exact distance to the A/B/C group to claim "exactly 1 km West".
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Option 4: We are directly told "Road B is 1/2 km West of road C". This means the distance between C and B is exactly 1/2 km.
Conclusion:
Possibility 4 is definitely true based on the provided information.
Correct Option: 4 (C and B are 1/2 km apart)