单选题

下面哪段程序能够正确的实现了GBK编码字节流到UTF-8编码字节流的转换：（B）数据类型：byte[] src, dst;

Question

A. dst=String.fromBytes(src，"GBK").getBytes("UTF-8")

B. dst=new String(src，"GBK").getBytes("UTF-8")

C. dst=new String("GBK"，src).getBytes()

D. dst=String.encode(String.decode(src，"GBK"))，"UTF-8" )