Who want to may or be my gf please sy yes gls love yall gls

What is the central idea in this advice from branch rickey to jackie robinson?  

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 statement does not describe ambro beer is the style of writing in an occurrence of our creek bridge