The correct answer is C, due to the fact that Buck's life and emotions are very similar to humans, as Buck's life is an allegory of human lives.
I believe the correct answer is A. She does not want to be deceived.
During the long years that Penelope waited for her husband Odysseus to come home, many people have come to Ithaca pretending to be Odysseus. So she is not likely to believe anyone that easily when they present themselves as her husband, which is why she is cautious even around the real Odysseus.
The dialogue seems to reveal that Kugler regrets that he didn't find the money. Talking about all of Kugler's evil deeds, God mentions an old couple that Kugler had killed hoping to find a significant amount of money. However, all he could find was sixteen dollars. Now God reveals to him that they had actually kept 20 thousand dollars in a mattress. Kruger doesn't seem to regret murdering those people, but not finding the money he was after.