单选题：For PipedInputStream and PipedOutputStream, which statement belo
For PipedInputStream and PipedOutputStream, which statement below is correct? @[A](2)
A. An object of PipedOutputStream is to be created based on an object of PipedInputStream
B. An object of PipedInputStream is to be created based on an object of PipedOutputStream
C. Objects of PipedInputStream and PipedOutputStream are to be created independently, and to be connected later.
D. Data flows from PipedInputStream to PipedOutputStream
A.An object of PipedOutputStream is to be created based on an object of PipedInputStream
B.An object of PipedInputStream is to be created based on an object of PipedOutputStream
C.Objects of PipedInputStream and PipedOutputStream are to be created independently, and to be connected later.
D.Data flows from PipedInputStream to PipedOutputStream
答案：A
A. An object of PipedOutputStream is to be created based on an object of PipedInputStream
B. An object of PipedInputStream is to be created based on an object of PipedOutputStream
C. Objects of PipedInputStream and PipedOutputStream are to be created independently, and to be connected later.
D. Data flows from PipedInputStream to PipedOutputStream
A.An object of PipedOutputStream is to be created based on an object of PipedInputStream
B.An object of PipedInputStream is to be created based on an object of PipedOutputStream
C.Objects of PipedInputStream and PipedOutputStream are to be created independently, and to be connected later.
D.Data flows from PipedInputStream to PipedOutputStream
答案：A