Because of the policy of Vienna [the Congress of Vienna, 1815], Germany is clearly too small for us both [Prussia and Austria]; as long as an honorable arrangement concerning the influence of each in Germany cannot be concluded and carried out, we will both plough the same disputed acre, and Austria will remain the only state to whom we can permanently lose or from whom we can permanently gain. . . . I wish only to express my conviction that, in the not too distant future, we shall have to fight for our existence against Austria and that it is not within our power to avoid that, since the course of events in Germany has no other solution. Based on the information in the letter, what can you infer Bismarck’s primary motivation for unification is?
a higher standard of living for its people
more land for growing food unification of Prussia and Austria
safety and security
answer is d safty and security