A 4 -year old domestic short haired cat presents for anorexia and weight loss of 1 week. Physical exam reveals a body condition score of 7/9, jaundice of the skin and sclera, and dehydration of 4%. Temperature is normal. 一只4岁的家养短毛猫由于持续一周的厌食和体重下降前来就诊。体格检查提示其体况评分7/9,皮肤黄染，黄疸，脱水4%，体温正常 Bloodwork shows 血检: ALT=303 (25-97 U/L) GGT=1.8 (0-6 U/L) ALP=1170 (0-45 U/L) bilirubin=3.0 (0-0.1 mg/dl)
Radiographs show an enlarged liver. What is the most important treatment for the cat's likely diagnosis? X光片显示肝脏增大。针对这只猫可能的疾病，哪种治疗方式最重要？
A - Parenteral vitamin K injections 肠外给予维生素K注射
B - Oral clavulanic acid and amoxicillin for 4 weeks 口服阿莫西林克拉维酸钾4周
C - Esophagostomy tube feeding 食道饲管
D - Oral S-adenosylmethionine for at least 1 month 口服S腺苷甲硫氨酸至少一个月