Dimitri Went Through a Lot of Hard Work During Basic

Dimitri went through a lot of hard work during basic training in the Army.At times,drill sergeants yelled at him; he was physically exhausted and emotionally distressed.But,at the end of Basic Training,he felt that joining the Army had been a very good decision.The self-esteem explanation for Dimitri's feelings about Basic Training is

A) Dimitri is delusional for deriving meaning from the horrible experience he just endured.
B) Dimitri has to somehow justify his suffering while maintaining his self-esteem.
C) Dimitri's self-esteem increased every day that he survived in Basic Training.
D) Dimitri's justification for joining the Army was strong enough to see him through to finishing Basic Training.