Qualifications required for the job

If the HR Manager of a  company and you have an exempt open position to fill and have received several  applications/resumes. This department has taken a lot of your time because they don’t get along very well, but yet there has been very little turnover in it. Lots of the  applicants look good on paper and you call several in for interviews. After all the interviewing is done, you find yourself with only 4 applicants that meets all the qualifications required for the job and strangely enough they all scored the same on the pre-employment test. There is:

a minority person, interviewed great but you think his religion could create a major problem

a handicapped person that will need some accommodation to do the job, but not something that would create a financial hardship for the company.

a 66 year old female that you’re sure would fit right in with half of the ladies in the department

the boss’s 25 year old nephew, and your boss is pressing  you to hire the nephew

Without asking for more information or more interviews than what is presented here, which should the HR Manager hire without breaking any laws?