Experts believe that one of the reasons that causes some college students to find employment difficulties is that some college students will enter labor-oriented and operational positions. Employers need workers who have both theoretical knowledge and operational skills. What college students are missing now. The most correct understanding of this passage is:. ['Employers need college students with theoretical knowledge.', 'Employers need workers with operational skills.', 'College students who have both theoretical knowledge and operational skills are favored by employers.', 'Labor-oriented, operational positions are not suitable for college students.']