Time zones were adopted to fix
a.)conflicting shipping schedules
b.)conflicting workday schedules
c.)conflicting harvest schedules
d.)conflicting train schedules

Option D.

Explanation:

Conflicting train schedules, is the right answer.

A time zone is a zone of the earth that follows a uniform standard time for economic, social and legal purposes. Time zones manage to reflect the borders of nations and their neighborhoods instead of longitude because it is suitable for regions in close economic or other information to keep the identical time. However, the time zones were adopted to fix conflicting train schedules.

this means that germany had to pay the allied countries. reparations are/is essentially payment for something that they have done wrong, so after ww1, germany was forced to pay reparations so they could replenish the allied countries resources' that they had lost during the war.