Answer:
Both a and b
Explanation:
The main motivation was a) to find a new sea route to Asia, because after the Ottoman Empire took control of Constantinople in 1453, it became harder for Western European countries to trade with Asia through the East, so they began to look for alternatives through the west.
However, b) also became a motivation. Christianity was deeply rooted in political power by the time, and the advancement of Christianity not only made the Church more powerful, but the governments as well.
The rise in oil, steel, and manufacturing goods
It started at the end Of World War One and was originally known as Armistice Day
They believe a land bridge connected the two continents at that time so they could follow the animals for food.
