Sentence 1: These workpapers should be (1) clear about what steps the team took and what conclusions they reached and (2) reviewed by staff with appropriate skills or, if needed, technical specialists.

Sentence 2: The workpapers should not be clear about what steps the team took
Available options:
(1). yes;
(2). it is not possible to tell;
(3). no;
Is this second sentence entailed by the first sentence?
(3).