Respuesta :
Answer:
The correct answer is B. The name of the physical boundary this question refers is the Ural Mountains.
Explanation:
The Ural Mountains are a mountain system located between the East European and West Siberian plains. It extends approximately from north to south through the western part of Russia, from the coast of the Arctic Ocean to the Ural River and northwestern Kazakhstan. The mountain range is part of the border between the continents of Europe and Asia. It has a length of more than 2,200 km, width from 40 to 150 km.