The correct answer is C. Panacea.
A panacea is a cure-all or remedy for all diseases and afflictions. The word comes from the Greek words pan, meaning “all,” and akos, meaning “remedy.”
Narcotics are drugs that produce a state of stupor or unconsciousness. They are often used to relieve pain or to induce sleep.
Antiseptics are substances that kill or prevent the growth of bacteria. They are often used to clean wounds or to prevent infection.
Lyrics are the words of a song. They are often used to express emotions or to tell a story.
Panacea is the best answer to the question because it is a cure-all or remedy for all diseases. Narcotics, antiseptics, and lyrics are not cures for all diseases.