) needed for such diagnosis is / are lacking . ( b ) As to each currently diagnosed acquired psychiatric disorder , please offer an opinion as to whether that disorder was manifest during service . In doing so , please address whether any of the performance / disciplinary problems which the Veteran had in service represented symptoms of a current psychiatric disability . ( c ) If ( and only if ) a current psychiatric disorder was manifest during service , please offer an opinion as to whether is it clear and unmistakable ( obvious , manifest , or undebatable ) that the acquired psychiatric disorder that was present during service existed prior to active military service ? If it is determined that a psychiatric disorder did