What was king frederick trying to do when he invades a possession of the holy roman empire in 1740?
a. he was testing the strength of the new empress maria theresa.
b. he was testing the strength of his alliances in europe.
c. he wanted to start a war with france.
d. he wanted to start a war with england.

The answer is "Option A".

Explanation:

In 1740-86, Friedrich II became King of Prussia, he was a great military strategist, that expanded Prussia and making Prussia, via a succession of political strategies and wars with Austria and other nations, the main army force in Europe, and he also tests the power of the maria Theresa, which is the new empress, that's why in this question only option "A" is correct.

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explanation:

(b) britain had a much larger navy than the u.s.

(d) the u.s. had a small army compared to britain.