[Q]: How does the sentence end?

Craig got better grades in high school than Derrick because  

[A]: Derrick did not like to read or study.


[Q]: How does the sentence end?

The baby of Kevin went through a lot more diapers than that of Logan, therefore 

[A]: Logan spent less money.


[Q]: How does the sentence end?

Joseph called the crisis hotline where Eric worked because 

[A]:
Joseph didn't know what to do in a crisis.