Respuesta :
The correct answer is B. Friendly and relaxed
Explanation:
In the text presented, the word "informal" is mainly defined by the sentence "with both of us adding references to our own lives" that suggest "informal" is related to personal information and "Yesterday's discussion was the opposite; we talked only business, nothing personal" that shows an informal discussion is the opposite to one related to business. These sentence act as context clues because they both show the word informal described a type of discussion that is casual or relaxed but also includes sharing with others. Therefore, the meaning of the word informal in this sentence is " Friendly and relaxed ".