What is an important reason that Russia exports a lot of electricity to countries in Europe? A.
Russia has very little else to export.
B.
Russia is rich in mineral resources that can be used to fuel power plants
C.
Most people in Russia do not use electricity, so it makes sense to sell it to other countries.
D.
The Russian government prevents nearby countries from producing their own electricity.

Please select the best answer from the choices provided
A
B
C
D

The investiture controversy began as a power struggle between pope gregory vii (1072–85) and henry iv, holy roman emperor (1056–1106).[2] a brief but significant struggle over investiture also occurred between henry i of england and pope paschal ii in the years 1103 to 1107, and the issue played a minor role in the struggles between church and state in france, as well.by undercutting the imperial power established by the salian emperors, the controversy led to nearly 50 years of civil war in germany, and the triumph of the great dukes and abbots. imperial power was finally re-established under the hohenstaufen dynasty. historian norman cantor:

The answer would be c.

The area of the indian subcontinent is 4.4 million km^2 whereas the usa is  9.8 million  km²

The "highest" point is a single point. 
there can't be more than one "highest" point.
it's not possible for every point on a line to be the "highest" one.