In the space next to each entry below, write U uf the entry describes an unskilled worker; SS, if a semi skilled worker; SK, if a skilled worker; P, if a professional. ________ A doctor or an optometrist ________ A cook at a restaurant ________ A nurse's aide ________ A security guard at an office building ________ An emergency medical technician ________ A health-care aide ________ A bank teller ________ An insurance claims examiner ________ A social worker ________ A computer operator