Concept:A dead metaphor is a figure of speech whose original imaginative power has been lost through constant use.
Explanation:A dead metaphor is used so often that it no longer creates a striking image in the reader's mind.
For example, phrases like "the hands of a clock" or "falling in love" are accepted as plain language because we no longer notice their metaphorical meaning.
Due to overuse, the expression becomes dull and ineffective, not humorous or implied.
Hence, the best description is "overused and ineffective."
Answer:C. overused and ineffective.