CAN SOMEONE PLEASE HELP ME !!!

Line 1 of this excerpt features a strong example of

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

Jason is making a list of sources for his current events report about the presidential election. he writes: magazine, newspaper, news website, book. which choice could provide the most current information? a) book b) magazine c) newspaper d) news website