Answer:
Hello!!! Princess Sakura here ^^
Explanation:
e. Paleolítico
<span>The answer is C, language. Language is the method that contributes to preschoolers’ improved emotional self-regulation.</span>
It is definitely not vacation: vacation would imply that the president is not at work, and the description above describes his work.
It's also not a judicial review, as it's something that the Supreme Court does, not the president.
The correct answer is: diplomatic relations! those refer to improving the relationships between the countries.
It is free to the buyer because he does not have to pay for the second product, but it is not free to society because the cost to produce the product including the labors, materials, machines, and electricity cost go unpaid.