A、Whether adequate investment is being made to improve airport facilities. B、Whether the British Airports Authority should sell

Long queues, delayed flights and overcrowding at airports have become almost as much a topic for conversation in Britain as the traditional complaining about the weather. Meanwhile, there are complaints that poor service at London’s major airports is discouraging foreigners from doing business in Britain. Much of the criticism is directed at the British Airports Authority which runs seven major airports, including the three main ones serving London.(3)The Competition Commission is now to investigate whether the British Airports Authority needs to sell off some of its assets. The idea is the competition between rival operators will lead to better service at airports.(4)The British Airports Authority, recently bought by a Spanish company, says the root cause of the problem is not the ownership structure, but a lack of runway and terminal capacity, which is addressing through a program of heavy investment.
Questions 3 and 4 are based on the news report you have just heard.
3. What is the Competition Commission going to investigate?
4. What is the root cause of the poor service at British airports according to the British Airports Authority?