Final answer:
The correct answer is Loyalty.
Step-by-step explanation:
The subject of this question is English as it pertains to a dialogue between two characters in a play. The question is asking about Creon's response to Haemon, and the answer can be found in the provided quote.
Creon is grateful for Haemon's loyalty in all matters, as indicated by his statement, 'To yield is grievous, but the obstinate soul that fights with Fate, is smitten grievously.' This shows that Creon appreciates Haemon's support and adherence.
Therefore, the correct answer is C. Loyalty.