Exercício: Qual a opção correta

Which alternative is correct? Explain the errors, please!
Remembering that only one of the alternatives is correct!

A. Do not you never ever say that again.
B. Never I will understand her.
C. She always is complaining about something. She seems to be never satisfied with anything.
D. I have never ever seen her smile . She is always serious. She looks more like a robot than a human.