参考答案

正确答案：B
解析：推理题。倒数第二段：When they came to him，the Indians never entered his house with its steeply sloping roof of dried grass and leaves．They had a delicate way of behaving。He was expected to cross the chicken strip towards them．通过这段话可知，当这些印第安人来找他时，他们从未进过他那斜屋顶上铺着干草和树叶的房子。他们表现得体。他们在树阴下站着，表示他们已经出现了。Melio则要跨过鸡舍向他们走去。然而，他们有一个奇怪但迷人的习惯，那就是他们后退一步，退到他们的绿色通道中。据此判断，答案是B。