The occupations of Lao Zhang, Lao Wang, Lao Li, and Lao Zhao are driver, professor, doctor, and worker. Known: (1) Lao Zhang is taller than Professor; (2) Lao Li is shorter than Lao Wang; ( 3) Workers are taller than drivers; (4) Doctors are shorter than professors; (5) Workers are either old Zhao or old Li. Can it be inferred from the above information? ['The occupations of four people can be determined.', 'Only three occupations can be determined for four people.', 'The occupation of four people can only determine two.', 'The occupation of four people can only be determined one.']