[Q]: How does the sentence end?

Staying calm was very easy for Steven but not for Derrick because 

[A]: Derrick didn't use meditation to keep themself centered.


[Q]: How does the sentence end?

Katrina saw that Samantha was very sad, so 

[A]: Katrina offered her comfort during her hard time.


[Q]: How does the sentence end?

Derrick had not acclimated to Alaska's climate as fast as Aaron had, and 

[A]:
Derrick was miserable in the cold.