Answer:
Option B. (Developed Movable Type)
The Roman legions, which were columns of roughly five-thousand men a piece, were greatly beneficial to the Romans because they were able to maneuver more freely around enemy forces, which were usually condensed into a single unit.
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<span>Travelers usually have multiple options for reaching a destination.</span>
With the growth of industrialization, many countries in
Europe experience an increase of wealth.
This also led to competition among European countries. They saw a need to protect their interest and
with that they began to strengthen their military and this led to formation of
alliances. As competition became more
intense it affected political affairs as well which later lead to war.