Which of the Following Is an Example of the Statement

Which of the following is an example of the statement that "language is structured"

A)  The phrase "the dog bit the man" means something different from "the man bit the dog." 
B)  You can use the word "dog" to refer to a variety of different individual animals. 
C)  You can use the word "dog" to refer to an animal that isn't currently present. 
D)  The word "dog" can be used in a variety of novel sentences.