问题：
[单选题]If more than half of the elements in the sequence are equal to m, then m is called a majority (Note: The definition of the majority in many places is the most frequently occurring element, but anyway)
序列中若有一半以上的元素同为m，则称m为众数（注：许多地方众数的定义是出现次数最多的元素，不过无妨）
If a sequence has a majority, it must be equal to
一个序列如果存在众数，则它一定等于
AMinimal element
最小元素
BMedian
中位数
CAverage
平均数
DThe average of the maximum element and the minimum element
最大元素和最小元素的平均
