Answer:
Correct answer is Required school children to learn one or two other languages besides their native language.
Explanation:
The only correct answer is the last option as on schools across Europe besides their Native language children are using additional language(s). It is usually English outside the country where English is first language and depends on geographical location.
All other options are not correct as they are depriving people from their basic human rights, which the laws of EU are not allowing.
The researchers found that the productivity of the more highly illuminated workers increased much more than that of the control group. They also found out that their productivity even improved when the lights were dimmed again. As a result, the researchers<span> concluded that it was not the changes in physical conditions that were affecting the workers' productivity. Rather, it was the fact that someone was actually concerned about their workplace.</span>