Owing to the poor visibility caused by the fog, it took us ten hours, instead of the usual eight, to get to Istanbul.

A The light of Istanbul were visible for two hours before we reached the city.

B Even though we ran into a lot of fog on the way to Istanbul, the journey didn’t take much longer than usual.

C It took between eight and ten hours to drive to Istanbul, depending on visibility.

D The fog meant that we reached Istanbul two hours later than normal.