Answer:
A. Birth rate.
Explanation:
The bir th rate refers to the ratio of the number of live -born bir ths per year. In other words, it is the number of people or animals, or living beings born per year.
To measure the number of children born in a country, the best rate measure will be the bir th rate. This will provide the number(s) of babies born in that particular place in a year.
Thus, the correct answer is option A.
So, West Berlin was under the control of the USA, UK, and France, while the Soviets controlled the eastern part. The Soviets blocked railroad ways, canals, and roads to West Berlin so that those in that part of Germany didn't have access to humanitarian supplies. The only way to get supplies in was by airplane, which was supposed to be a dangerous task, however, the Russians didn't try to stop the planes from coming in in fear of retaliation from the US and her allies. This incident occurred during the Cold War Era, a time in which the West (USA) and her allies feared that Communism would spread.
Hopefully this helped and good luck.
The Magna Carta in England was a precursor for modern democracy firstly because It took away total control from the monarchy and dispersed it evenly, furthermore, the Magna Carta began to make the ruler responsible under the law. The correct answer is the second option.