Answer the following question: Read the following article and select the best answer. Article: Life-long learning is the concept that "It's never too soon or too late for learning." -- a philosophy that has taken root in a larger number of different organizations. Life-long learning is an attitude -- learners believe that one can and should be open to new ideas, decisions, skills or behaviors. Life-long learning throws the well-known rule "You can't teach an old dog new tricks" out of the door. Life-long learning provides the general public with learning opportunities at all ages and in different ways: at work, at home and through leisure activities, not just through formal channels such as school and higher education. Life-long education is often achieved through distance learning or e-learning, continuing education, home schooling, etc. It also includes training programs for those who want to improve their qualifications, bring their skills up to date or retrain for a new line of work. In later life, especially in retirement, continued learning takes various forms, crossing traditional academic limits. One of the reasons why life-long education has become so important is the rapid progress of modern science and technology. Although the period of primary, secondary and university education is increased, the knowledge and skills gained there are usually not _ for a professional career spanning three or four decades. Question: What is the main idea behind life-long education? - To force people to keep in learning new skills throughout their working life. - To provide teachers with extra income. - To allow people to have chances to receive education throughout their life. - To prevent students from learning at school.
Answer:
To allow people to have chances to receive education throughout their life.