Which of the following could be an example of Recommendation Systems? (1) A job recommendation system that retrieves a list of job positions that satisfy a job seeker's desire based on past work experience, salary expectations, work profile, etc., or a list of talented candidates that meet the requirement of a recruiter. (2) A news recommendation system that helps users find articles that are most interesting to them based on their previous likes/dislikes and preferences such as areas of interest, preferred length of articles, etc. (3) A restaurant recommendation system based on previous ratings provided by customers and information on the customer habits, locality, price range, etc. (4) An ML model predicting the sales of the organization based on previous sales data and other factors contributing to sales