A. Response
is a form of learning in which animals or people make a connection between two stimuli that have occurred together such that one predicts the other.
The answer would be b because people are more independent now then ever
Unique means to be unlike anything else. When something or someone unique, they are one of a kind. It is often a very nice compliment when meant as a compliment. Sometimes unique can be used as a placeholder for a compliment when someone does not wish to insult the other person. If you think something is ugly or bad, you can say unique, because the thing or person can still be unlike anything else, even if it's not good.
Explanation:
While the main idea is usually in the first sentence, the next most common placement is in the last sentence of a paragraph. The author gives supporting information first and then makes the point in the last sentence.
