Correct Answer:
C. bad-tempered
Grouchy means bad-tempered and complaining.
- Correct answer - bad-tempered: it has the same meaning as Grouchy.
- heinous: extremely wicked - wrong, it does not mean the same as Grouchy.
- regretful: feeling sorry - wrong, it does not mean the same as Grouchy.
- absurd: ridiculous - wrong, it does not mean the same as Grouchy.