It would be C. Informal because you are suppose to start business letters with Dear (Yourname) and it's the only one that does.
I agree because everyone struggles everyday. i doubt anyone wakes up everyday completely stress-free. we are all human in this sense, it is the human condition. when people are given the chance to make decisions with hardly any repercussions, they will not always do what is expected of them. it morally destroys empathy and modesty.
I believe the answer is full of drama
I apologize if this is incorrect or not what you are looking for.
