Concept:Language is a symbolic, rule-governed system used by a group to communicate meaning and express thoughts.
Explanation:Language consists of symbols (words, signs) that follow a set of conventions or rules.
These rules organize how words are formed, combined, and interpreted.
They include phonology, syntax, morphology, and semantics.
Rules set boundaries on word meanings and relationships between words.
Different languages have different rule systems, but all languages are governed by such rules.
Thus, language is not just a communication tool; it is a rule-governed system.
Other options like "system of structures" are incomplete, "communication system" is too broad, and "scientific system" is not accurate.
Answer:C. a rule governed system