Ooh Mr Dom!
The poll is does not give an accurate representation as you have supplied the incorrect answers. You have given a Yes, whereas you have split the statistical probability of the No vote.
You must put together the GSCE exams as well
GSCE Physics:
Did Newton get hit on the head by an apple?
A. Possibly
B. Yes
C. Maybe
D. No
If you just have Yes/No the statistical probability is that the majority of those who answered, A or C would have selected Yes.