This question focuses on the benefits of job search engines. The correct answer is [C] because the passage states that these engines reduce the need for repeated visits to job sites, which improves efficiency. Option [A] is incorrect because the passage does not claim that search engines provide direct job opportunities. Option [B] is false as it contradicts the passage's information on reducing the need for repeated visits. Option [D] is misleading because it suggests a negative aspect, whereas the passage indicates that search engines are helpful.