When companies need new employees, they usually place advertisements in newspapers in order to attract as many applicants as possible. But many large well-known companies hire new people frequently without putting advertisements in newspaper, because they already have many resumes on hand. Therefore, it is not always a best way to apply only to companies that place ads in newspapers. A person looking for a job is advised to send his resume with a cover letter to a well-known company even if a position is not then open. He can follow up with a telephone call to inquire if his resume has been received and if some jobs are available. If there is not a job available in the company at that time, he can ask that they keep his material on file and contact him in the future when something is available. If later he sees an advertisement in the newspaper for a job with that company, he may call the company whether they will consider him for the position. So, a person has nothing to lose and everything to gain by sending in his resume. According to the passage, it is beneficial for you to ______.
A．place ads in newspapers when you needs new people B．not to place ads in newspapers when you needs new employees C．send your resume to any companies when they need new employees D．send your resume to well-known companies at any time