Concept:A language is a rule-governed symbolic system of communication that naturally includes various regional varieties known as dialects.Explanation:A dialect is a regional form of a language with differences in pronunciation, vocabulary, and grammar. A language does not need a script or a specific geographical region to exist. For example, Hindi has many dialects across India, such as those in Telangana with Hindi-Urdu words. Similarly, every language consists of multiple dialects. Option A is false because a dialect does not contain many languages. Option B is false because scripts are not essential for a language (e.g., many languages are oral). Option C is false because a language can be spoken across many regions.Answer:Option D - A language has many dialects.