Which of the following statements is true according to the passage?
GM food may be just a way for some multinational corporations to drive China's patent hybrid rice out of the market.
Those who are for GM products and those who are against keep arguing fiercely by holding conferences.
People are failing to show evidence to support their pros and cons, although they hold a firm belief of their own.
Some people think those against GM foods have a good knowledge of GM technology and are spreading rumors.