Which Is the Best Standard-Form Representation of the Following Argument

Multiple Choice

Which is the best standard-form representation of the following Argument from Principle?
I can't believe you tattled on Heather for cheating on the chemistry midterm. That was so wrong of you to do that to her. It's not like she killed someone.

A) 1) It's wrong to tell on someone unless they've killed someone.
2) Heather didn't kill anyone.
So, it was wrong to tell on Heather.
B) 1) I can't believe you tattled on Heather for cheating.
2) Heather didn't kill anyone.
So, it was wrong of you to tell on Heather.
C) 1) It was wrong of you to tell on Heather for cheating on the chemistry midterm.
2) It's not like Heather killed someone. So, you shouldn't have tattled on her.
D) 1) I can't believe you tattled on Heather for cheating on the chemistry midterm.
2) That was so wrong of you. So, Heather didn't kill anyone.