Read the following article and answer the question by choosing from the options.

I 'll make sure I have my camera next time . My helmet 's far too big for me . Rex even thinks so . His XL fits me better than my medium . It seemed to fit me fine when I first got it . Maybe it did , and now after wearing it , it 's just loosened up , or I ' m just stupid and do n't know how to size a helmet right .

What is strange about the sizes of the two helmets ?
Available options: i. The extra large is bigger than the XXL but smaller than the medium .; ii. The extra - large is smaller than the middling size , which is too large for me .; iii. None of the above choices .; iv. Both helmets used to fit me but now both helmets are too big .;...A:
ii.