The correct order of the Trans-Siberian Railway stations from west to east is:
- Moscow (II) – Located in the western part of Russia.
- Kazan (IV) – Located to the east of Moscow.
- Omsk (III) – Located further to the east of Kazan.
- Chita (I) – Located in the far east of Russia. Thus, the correct option is (B) II, IV, III, I.