A. B, and C. Their occupations include lawyers, doctors, and teachers. Known: (1) C's income is higher than teachers; (2) A's income is different from doctors; (3) Doctors' income ratio B less. Can this be launched? ['is a lawyer B is a teacher C is a doctor.', 'A is a teacher B is a doctor C is a lawyer.', 'A is a teacher B is a lawyer C is a doctor.', 'A is a lawyer B is a doctor C is a teacher.']