In my Chemistry paper, we have 2 choices for the last question. 10 (Either) of 10 (Or).

I forgot to specify whether I did part (Either) or (Or).

How screwed am I? This part is like 8.33% of my total score lol. It means the difference of 1 whole grade.

Btw the papers are sent to GCSE people in Cambridge to be marked I think. Are people from Cambridge uptight?