单选题 Which is Lucy's bag, the yellow one______the red one?
[A] and [B] but [C] or

【正确答案】 C
【答案解析】考查连词用法。and表并列,“和”;but表转折,“但是”;or表选择,“或者,还是”。由句子结构与句意不难看出这里是在两者中择一,因此选or。