Central asia is bordered by in the north and in the east. a. russia . . china b. the caspian sea . . china c. the caspian sea . . russia d. lake balkhash . . caspian sea

A.
Russia . . . China

Central Asia is bordered by Russia in the north and China in the east.

Russia sits directly on top of Kazakhstan and China on it's right. 

Central Asia is bordered by Russia in the north and China in the east.

Explanation:

The entire northern part of Asia is spanned by Russia. It is because of its east-west expanse, all the countries that form the central belt of the mainland Asian continent share their northern borders with Russia. The eastern part of Asia begins with the western boundary of China. Thus the countries that come in Central Asia share their eastern boundaries with China.

Ithink the correct answer is a