If i save enough money. which element is necessary to complete the sentence above? subject predicate prepositional phrase independent clause

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

Princess and i are driving to tulsa to ecxcept an award.

Using the ideas in these sentences the reader can most likely conclude that the father 1.enjoys surprising his wife with news. 2.is easily provoked into over-reacting 3.does not hold high regard for ojukwu. 3.does not respect his wife’s political views. :