4下列何種成分與烏賊、章魚及蝦類等肌肉之甜味有密切關係？ (A)甘胺酸(glycine)及甜菜檢(betaine) (B)鬆胺酸(glutamic acid)及天門冬胺酸(asp&rtic acid) (C)離胺酸（lysine)及精胺酸（arginine) (D)白胺酸（I eucine)及異白胺酸（iso leucine)