Who here is gay? Say “I"

4- en el restaurante fill in the blanks with complete sentences using the cues and the preterite form of the verbs.

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

Aprimary source: a- may be biased b- is never biased c- cannot possibly have bias d- none of the above