How does point of view me to understand who is speaking?

How can behavioral science be applied in improving public health? a. by tracking a disease to determine its sourceb. by creating promotions that improve health habitscboth by tracking a disease to determine its source and by creating promotions that improve health habitsd. neither by tracking a disease to determine its source or by creating promotions that improve health habits

Which of the following is an appeal to reason? (5 points) a statistics or other facts that will bring audiences to a logical conclusion b positive references to the audience's sense of right versus wrong c strong organization and use of proper spelling, punctuation, and grammar d descriptions of events or places that have meanings to the audience

What is wrong with they follow citation of a book with two authors