The sales department of a company has five staff members, two of whom have a bachelor's degree in marketing, two undergraduate programs in computer, and one undergraduate program in physics. They also know that two of the five women have their undergraduate programs. Different backgrounds. Based on the above, which of the following inferences is most likely to hold? ['Two men in this sales department are from different undergraduate majors.', 'A lady in the sales department must have graduated in computer science.', 'Three men in the sales department come from different undergraduate majors, and the ladies also come from different undergraduate majors.', 'At least one man in the sales department graduated in marketing.']