What is the main purpose of 1 điểm Machov a's TED Talk "The Secret of Learning a New Lan guage"? a) To encourag e people to become fluent in multiple languages as quickly as possible b) To highlight the challenges and barriers to language learning in adulthood c) To share effective and enjoyable strategies for learning a new language independently d) To explain the scientific processes behind language acquisition

The main purpose of Machov's TED Talk "The Secret of Learning a New Language" is to share effective and enjoyable strategies for learning a new language independently. The talk focuses on how to learn a new language without the need for formal education or expensive courses, by leveraging the natural learning processes that children use. It does not primarily focus on encouraging people to become fluent in multiple languages as quickly as possible, nor does it focus on highlighting the challenges and barriers to language learning in adulthood or explaining the scientific processes behind language acquisition. The talk is more about providing practical tips and strategies for individuals who want to learn a new language on their own.