单选题：Given 4 cases of frequences of four characters. In which case(s)

Given 4 cases of frequences of four characters. In which case(s) that the total bits taken by Huffman codes are the same as that of the ordinary equal length codes?

(1) 4 2 11 6
(2) 6 5 7 12
(3) 3 2 3 4
(4) 8 3 10 7
@[C](3)

A. (3) only
B. (1) and (3)
C. (3) and (4)
D. none



A.(3) only
B.(1) and (3)
C.(3) and (4)
D.none


答案：C