I believe it is C), leaders. :)
You can cross out A
And I remember reading these 2about a year ago, so If I remember clear enough I believe it's
D: Never give up without a fight.
Hope this Helps,
Again it's been about a little over a year since I've read them so if it's wrong I apologize :)
Answer:
C. Change had enjoyed to have enjoyed
Explanation:
Had enjoyed in past tense and have is present as it should be.