Premise: It's best to book in advance for the activities, as The Ark has become quite popular, and activities sometimes fill up in advance; Tel. 670 7788, fax 670 7758.
Hypothesis: There is plenty of room at The Ark; no need to book in advance.
Is the hypothesis entailed by the premise?
Available options:
i. yes.
ii. it is not possible to tell.
iii. no. And the answer is:
iii.