[Q]: How does the sentence end?

Emily takes Erin for a fun day at the amusement park because 

[A]: Emily is a parent.


[Q]: How does the sentence end?

Donald was better behaved on the film set than Nelson because 

[A]: Nelson checked in late.


[Q]: How does the sentence end?

The treatment from the doctor didn't involve medication and used therapy instead because the 

[A]:
therapy was unintrusive.