Sentence 1: However, one thing that should emerge quite clearly from the discussion of design features intrinsic to the case study is that it can be a rather costly endeavor, given the time required, the rich in-depth nature of the information sought, and the need to achieve credibility.

Sentence 2: It can be quite costly to perform a case study.
Select from: (I). yes (II). it is not possible to tell (III). no
Is this second sentence entailed by the first sentence?
(I).