GCSE English lit paper 2 inspector calls

I chose the question “how does Priestly use the character of mes Birling to explore ideas of social class”
However i misted the wuestion and only wrote two paragraphs about mrs Birling and the other two were about mr Birling and the relationship between Gerald and Daisy Renton.
How many marks will i lose for this?
Is there any chance of picking up marks in the other two paragraphs?