Chapter 4. Emotions and MoodsInitial Postings: Read and reflect on the assigned readings for the week. Then post what you thought was the most important concept(s), method(s), term(s), and/or any other thing that you felt was worthy of your understanding in each assigned textbook chapter.Your initial post should be based upon the assigned reading for the week, so the textbook should be a source listed in your reference section and cited within the body of the text. Other sources are not required but feel free to use them if they aid in your discussion.Also, provide a graduate-level response to each of the following questions:Research has shown that Monday is the highest negative-affect day across most cultures. However, in some countries, negative affect is lower on Friday and Saturday than on Sunday. What are two explanations for this discrepancy?