Russia supply natural gas to the European countries which transit through state of : ________?

A. Turkey
B. Esotonia
C. Ukraine
D. Latvia

Explanation:

Europe depends on Russia for about 40% of its natural gas, with most transported by pipeline. Some pipelines transit Ukraine, while others take alternative routes, such as Yamal-Europe, which crosses Belarus and Poland to Germany, and Nord Stream 1, which runs under the Baltic to Germany.