Final answer:
Prussia battled Austria during the 1700s primarily due to territorial disputes.
Step-by-step explanation:
The main reason Prussia battled Austria during the 1700s was a) territorial disputes.
Prussia sought to expand its territory and assert its dominance in Central Europe, which led to conflicts with Austria over disputed regions such as Silesia. These territorial disputes resulted in several wars, including the War of Austrian Succession and the Seven Years' War.
While there were other factors that influenced the tensions between Prussia and Austria in the 1700s, such as religious differences and economic rivalries, territorial disputes were the primary cause of their battles during this time period.
Learn more about Territorial disputes