When russia began expanding south toward the black sea it came into conflict with . which tsar nicholas i referred to as “the sick man of europe”.
a. poland
b. sweden
c. lithuania
d. the ottoman empire

When Russia began expanding south toward the Black Sea it came into conflict with THE OTTOMAN EMPIRE which Tsar Nicholas I referred to as “the sick man of Europe”.

Explanation:

a. because the u.s. was the leading with the most technology, economy, etc. also was teamed with other allies witch boosted the economy and materials to improve technology and use it.

the big stick policy was to still look powerful, and be nice at the same time. the big stick policy was also to countries who were at war, find peace with eachother.

the dollar diplomacy was to expand american business and get it to latin america, for that would be good for the economy.

you my friend, your regards.

agubaba khaleekha.