The goal of the allied occupation of Japan was to form rehabilitation and the U.S enacted widespread military, political, economical, and social reforms.
Many farmers lost their land when it was sold to the optimates
Japan never actually attacked (so: also never conquered) the parts very far away from it: it never attacked Eastern Europe (we reject option 1), nor did it attack Turkey (we reject option 3) and it did not attack India (we reject option 4).
the correct option is the remaining one: 2.