单选题：It is known that the sixth layer of a complete binary tree (the

It is known that the sixth layer of a complete binary tree (the root is the first layer) has 8 leaf nodes, then the number of nodes of the complete binary tree is at most ____.
@[C](3)

A. 39
B. 52
C. 111
D. 119



A.39
B.52
C.111
D.119


答案：C