Which of the following statements about prescriptive and descriptive grammar is correct?

There are two approaches to language; descriptive and prescriptive grammar.

Prescriptive grammar explains or prescribes how the language should be used. For example “Don’t split infinitives" is a prescriptive rule.  

Descriptive grammar shows or describes how a language is used by people, not saying how it should be used.  

According to prescriptive grammar, a sentence is grammatical only if the native speaker uses it in his or her speaking. However, descriptive grammar explains how a sentence is produced through mental processes.  

the answer is: the start of world war i, and russia’s hopes of benefiting from it

during world war i russian joined due to in their current crisis they were being supported by france and the war was already declared to them by germany, they needed to maintain their political goal and leadership role in the balkans, and is the same feeling that this excerpt evoke the eager of maintain the land value.

hello, i belive you can. i once answered a question in russian and its still up so i guess you can.