Answer: 1:ambitious little animals 2:so skilled at there task
The answer is B) study geography
I'm guessing the central idea of "the value of music that tickles the brain" is that music makes you smarter, increases IQ level, makes language development smoother, enhances creativity, and increases the reactions in your brain to work faster. Music has many benefits and these are just a few. You can always also just research on the topic of music effects on the brain online. Hope it helps!
I would say that learning another language is the most important for communication especially if one is in the country where the other language is spoken and is immersed in it then to be able to survive then one must learn the language and also the process of learning it requires reaching out to the local people and relying on their assistance which bonds one with the people of that country.