Final answer:
The illegal question among the options provided is 'b. Which state were you born in?' as it can lead to discrimination based on national origin, violating Equal Employment Opportunity laws.
Step-by-step explanation:
The subject of this question is concerned with what is permissible to ask during a job interview in the United States, which is an issue of employment law. According to the laws governing equal employment opportunities, it's illegal to ask job interview questions that may lead to discrimination. Among the options provided:
- Which university did you attend? - Legal
- Which state were you born in? - Illegal
- Do you have a commercial driver's license? - Legal, if it's relevant to the job
- What salary would you expect for this position? - Legal
The illegal question in this case is 'b. Which state were you born in?' because it could be used to discriminate based on national origin, which is protected under the Equal Employment Opportunity (EEO) laws. Employers are required to focus on the applicant's qualifications and whether they're authorized to work in the U.S., rather than their place of birth.