Why could the formation of the Provisional Government after the Tsar's removal not be considered a permanent solution?

Because it was an interim arrangement until a future Constituent Assembly

The governing concept is the constitutional meaning of a provisional government. The word provisional indicates that the institution is temporary and is expected to govern only until a more permanent political arrangement is created. After the Tsar’s removal in 1917, the Provisional Government was expected to administer the country and organise elections for a Constituent Assembly, which would decide the future constitutional structure. Hence option A is correct. It was not a private council of the Tsar’s family, so option B is false. It did not exist simply to begin a war, making option C incorrect, and it was not based only on Church rules, so option D is also wrong. Its temporary character and unresolved political questions made it an incomplete solution.

This is a Class 9 History question. Chapter: Socialism in Europe and the Russian Revolution. Topic: The February Revolution in Petrograd.