It would be the girls’ dogs since there are multiple owners of the dogs. You keep the girls plural and use the apostrophe at the end to make it girls’ since it is both plural and possessive.
In this text, you are informed on what the term "Sandwich generation" means. You are then provided an example (2nd sentence). The example can be found when the transition word <em>for instance</em> is used. From this information, you should be able to conclude that the correct answer is a. definition and example.
It's advocating independence from great Britain to the people in the thirteen colonies
....zzzozososos and so it connects
