First , in all the usual and expected places . When the case did n't turn up , we searched all the unusual and unexpected places . Still no case . We interrogated the kids , but none of them knew where it was .
According to the above context, choose the best option to answer the following question.
Question: How did we feel after trying to do what we tried to do ?
Options:
- We were happy to still have the case after all that .
 - We were glad the case were n't stolen again after we did that .
 - We were upset that we failed to find the case .
 - We were glad to have found the case .


We were upset that we failed to find the case .