Question with options: can we draw the following hypothesis from the context?

Context:

Witching hour passed and Potter fans poured into bookshops around the world on Saturday, snatching up copies of the latest instalment in the series that promises to be the fastest-selling book in history.

Hypothesis: Potter fans rushed to tills in order to purchase the book.
Choose from:
(I) yes;
(II) no;
A:
(I)