[Q]: How does the sentence end?

Emily looked much better in her swimsuit than Katrina because 

[A]: Emily maintained a healthy diet.


[Q]: How does the sentence end?

Instructions to Betty had to be simple, only Kayla could handle the complex stuff; 

[A]: Kayla was competent with too much information.


[Q]: How does the sentence end?

Patricia had to deal with the unpleasantness of menstruation before Megan, because 

[A]:
Patricia was older.