If two vehicles cross paths on a curve with their high-beam lights on, which of the two will switch to low beam first?

If two vehicles cross paths on a curve with their high-beam lights on, which of the two will switch to low beam first?
A)The one driving on the outside of the curve.
B)The one driving on the inside of the curve.Correct
C)Neither of the two.
The one driving on the inside of the curve will be the first to switch the high-beam light to low-beam. The light beam of the one driving on the outside of the curve only illuminates a small part of it, although they must also switch.