Correct Option: C

chaotic (Adjective) : in a state of complete confusion and lack of order
orderly (Adjective) : arranged or organized in a neat, careful and logical way ; tidy ; behaving well ; peaceful
unclear (Adjective) : not clear or definite; difficult to understand
valueless (Adjective) : without value or worth; worthless
incomplete (Adjective) : not finished; not complete