Can someone make a summary of this paragraph plz

Place the steps of the strategy for reading technical information in the correct order.

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

The pop quiz surprised natasha more than read the sentence and choose the correct pronoun.