Correct Answer - Option 2 : Only assumption II is implicit
The statement presents the issue of 'not reaching the railway station on time' as a problem. This means that reaching the railway station on time is necessary. So, the assumption (I) is not implicit. Besides, it is mentioned that reaching the railway station on time has become difficult due to a large number of potholes on the road. This implies that the road is the only possible way.
Hence, Only assumption (II) is implicit.