I could have continued my higher studies if I wanted but, that's water under the bridge.

Options

A. something I cannot change
B. the time I met with an accident near the bridge
C. something my farnily did not want
D. the time I went on a cruise

Answer

A

Explanation

water under the bridge : something that happeaned in the past and is now forgotten or no longer important In order to have peace of mind we should let water under the bridge pass. The best option is something I cannot change.