The correct option is C 11:15 hours
Time when Ben leaves his house = 10:30 am = 10:30 hours
Time taken by taxi = 45 minutes
Time he reaches the station = 75 minutes = 60 minutes + 15 minutes = 1 hour + 15 minutes
10 hours + 1 hour + 15 minutes
=11 hours + 15 minutes
=11:15 hours
Hence, Ben reaches the railway station at 11:15 hours.