He had to admit it was almost ... cute sometimes when Sanzo dozed off in the front seat ; usually all the tension would evaporate from his features , leaving an open , clear expression so uncharacteristic yet still undeniably Sanzo it shook Gojyo to his core . He loved seeing that face , no matter how much he would never admit it to anyone .

Question: Why is the subject no longer so upset at Sanzo for his behavior ?
Answer: The subject gets a kick out of Sanzo when he is being lighthearted .The subject gets a kick out of Sanzo when he is telling jokes .The subject gets a kick out of Sanzo when he is slumbering .None of the above choices .