Thesis statement
explaintion: it makes up the evidence to support your main idea
I believe it is an example of check and balances. Checks and balances, principle of government under which separate branches are empowered to prevent actions by other branches and are induced to share power. They are applied primarily in constitutional governments. The system of check and balances is used to keep the government from getting too powerful in one branch. For example, the Executive Branch can veto bills from the Legislative Branch, but the Legislative Branch can override the veto.
"An increase in scientific and medical discoveries improved life expectancies" is the one reason among the following choices given in the question that <span>is the best possible explanation for the changes in Europe's population since 1750. The correct option among all the options that are given in the question is the first option.</span>
