Answer:
PART A:
A. Showing sudden irritation.
PART B:
C. "She looked at him out of furious eyes..." (Paragraph 13).
Explanation:
As used in Paragraph 10, the word "petulantly" means "showing sudden irritation". As she looked at him out of furious eyes, it is clear that she was suddenly irritated by the invitation.
"Petulant" means a move with sudden irritation over trifling annoyance. It manifests in anger and irritation.