已知关键字序列{503,87,512,61,908,170,897,275,653,462}, 将此关键字序列建成一个大顶堆，正确的是（ ）

A、908,653,897,503,462,170,512,275,61,87;
B、908,653,512,503,462,170,897,275,61,87;
C、908,653,897,503,462,170,275,512,61,87;
D、908,653,897,503,462,170,87,275,61,512