All these sentences use the word "so" correctly except: billy set off across the dusty field. so did his trusty ferret gonzo. billy set off across the dusty field, and so did his trusty ferret gonzo. billy set off across the dusty field, so did his trusty ferret gonzo. billy set off across the dusty field; so did his trusty ferret gonzo.

The correct word to complete the sentence

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

What response does lincoln hope to elicit from his listeners with these words from his gettysburg address "we gave to come dedicate a portion of that field, as a final resting place for those who here gave their lives, that that nation might live. it is altogether fitting and proper that we should do this