The correct answer is A. We practiced for the debate and many arguments were rehearsed.
As you can see in this sentence, in the first part the pronoun <em>we </em>is used, and in the latter part, that pronoun just disappears and the sentence suddenly becomes passive rather than active. The shift isn't done properly - it is rather awkward. The other options are consistent - they use only one voice rather than two (like in sentence A).
D. Furthermore, the bonus you gave yourself, despite the tight school budget, proves you are unconcerned with maintaining our state-of-the-art facilities.
I’m not sure what the certain scenario is for this question, but I do know “liberation” means “free from imprisonment”. Perhaps the character has achieved something that has been holding them back from success, or cut off ties from someone who influences them negatively, or quite literally escaped something/someone that had captured them. I hope this helped.