Your answer is very clear from the text given. The text is informatory, speaking of how we make very unconscious and conscious decisions to go with whatever is the trend at the time. It speaks of how people are making decisions based on the advertisements we see, such as how a commercial might have a catchy jingle (for instance, Nationwide: Nationwide is on your side!)
Now, if you remember that catchy jingle, the next time your looking for auto insurance, you might remember that very jingle, and think to yourself: "You know what, nationwide might be worth checking out!"
Now, the answer that fits this is A: Advertisements have a huge impact on our daily lives."
This is indeed very true. Another example could be Taco Bell's new commercials, labled as the "Belluminati". The commercial is very interesting and catches the watchers attention while making a standard point: Everything on the menu, single item-wise, is JUST $1. Now, if your a cheap-loving-food-addict, you would immediately rush to taco bell and start ordering, if everything is just $1. This is another example of how advertisements can affect you.
Your answer is A.
~Hope this helps!