C) An unabridged dictionary of the English language attempts to cover all the words in the language and gives information on each word’s history.
The word “abridged” means to have been reduced in length by getting rid of extra information and only presenting the basics. If something is unabridged, it will be understood to be free of the removal of any information. Thus, an unabridged dictionary will be as comprehensive as possible and provide as much information about the words as possible, too, such as parts of speech, etymology, pronunciations, etc.