单选题给出下面的代码段：public class Base{intw，x，y，z；public Base（inta，intb）{x=a；y=b；}public Base（inta，intb，intc，intd）{//assignmentx=a，y=bw=d；z=c；}}在代码说明//assignmentx=a，y=b处写入如下哪个代码是正确的？（）ABase（a，b）Bx=a，y=bCsuper（a，b）Dthis（a，b）
单选题
给出下面的代码段：public class Base{intw，x，y，z；public Base（inta，intb）{x=a；y=b；}public Base（inta，intb，intc，intd）{//assignmentx=a，y=bw=d；z=c；}}在代码说明//assignmentx=a，y=b处写入如下哪个代码是正确的？（）
A
Base（a，b）
B
x=a，y=b
C
super（a，b）
D
this（a，b）
参考解析
解析：
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