Russia is a proper noun, therefore it needs to be capitalized. Near, border and the doesn't need to be capitalized because they are common noun, article and preposition. Border is the common noun. The is the article and near is the preposition...
B. is the correct answer because, Russian is the name of a place or language and it needs to be capitalized. Also because the words: border, near, and the, don't need to be capitalized because they are not the name of something. Only Russian needs to be capitlaized. So it's B.
