Correct Answer: C
Explanation:
Meaning: The meaning of sanguine is someone who has cheerful temperament, confident.
Sanguine refers to someone or something the color of blood or a reddish color.
Example: All the sanguine expectations were not fully realized.
Synonyms: Cheerful, Upbeat, Enthusiastic, Hopeful
Antonyms: Down, Gloomy, Depressed, Sad