An antonym of cold could include hot or warm.
The following lines show us that Haemon believes that the opinions of the Theban citizens should be heeded:
"The commons stand in terror of thy frown,
And dare not utter aught that might offend,
But I can overhear their muttered plaints,
Know how the people mourn this maiden doomed
For noblest deeds to die the worst of deaths."
The citizens, according to Haemon, are too scared of defying Creon; however, Haemon can hear their objections to his decision, and he knows that they are on Antigone's side. They believe she is dying unfairly, and he respects their opinion, which is why he brings it to his father.
The answer you are looking for is B.
