The correct answer here is B. that is the second option.
The conservation movement is a movement with the goal of protecting the nature, both flora and fauna and their habitats for the generations to come and enjoy. The conservation movement in contrasts to more traditional environmental movements mostly in the US seeks to protect nature but in order for it to be available for use sustainable use by the population. They are protecting the nature in order to keep using the natural resources.
from the given question answer B is right
Joseph Stalin is a textbook dictator that was not choosing means in order to strengthen his power and control of the country. Stalin's tactics were mostly consisted of fear, elimination, and imprisonment. In order to avoid and confrontations and strong political opponents, Stalin eliminated pretty much everyone that his people were able to capture and was posing a political threat to him in his eyes. These people were either killed in cold blood, or were taken in the Gulag where they died because of the terrible conditions. Everyone that was going to express an opinion against Stalin or the Communist Party was targeted and was ending up in prison, usually never coming home again. In order to nullify attempts for separatist movements, which was highly possible considering the numerous ethnic groups in the Soviet Union, Stalin was systematically killing, imprisoning, or relocating people of certain ethnic groups in order to break their nation core and identity.
It's important that we know where and how we came to be. For example we wouldn't really understand why you're a certain religion if we didn't know who settled the land and what happened. Not only that, but also a lot of things happened back then, a civil war, WWI and WWII, the Cold war, war of 1812, that made things what it is present day. Also history makes sure that we can honor people for freedom, such as Abe Lincoln who freed slaves. The point I'm making here is that history is a way to remember important events that have effected many things and many places and without keeping track of history (for example if we didn't keep track of the Constitution) we wouldn't have the somewhat peaceful society of today.