Answer:
B. The Right to Vote
Step-by-step explanation:
For context, Estonia is a country in Northern Europe located next to Finland and the Baltic Sea.
It's a democratic system, and its citizenship rules include the guidelines around voting.
For this question, you can start by eliminating "a. economic rights."
It is very hard for a set of governmental guidelines to discriminate against one minority economically, as Estonia (like most nations) has a free market.
Economic rights should be easy to attain in a country like Estonia- as you can freely sell labor and have the right to make economic decisions.
Next, you can also eliminate "c. right to women's vote." This answer is incorrect because a Russian minority doesn't only include males but also females. This narrows the scope of the answer in a way that is incorrect due to its specificity.
Due to these eliminations, you can safely eliminate "d. all of the above." leaving you with the right answer.
Estonia has made its citizenship rules in such a way that people belinging to Russian minority find it difficult to get the right to vote.