Problem: Angela was more prone to infection than Rachel because 

My choice: Rachel had stronger lungs since childhood.


Problem: Samantha was a student and asked Christine for help with their history and english homework because 

My choice: Christine was a professor.


Problem: The weight of the freighter had changed after the metals and the feathers were removed although the 

My choice: feathers accounted for a little of it.


Problem: Nick made a better grade in the class than Donald because 

My choice:
Donald was always chatting during the lesson.