单项选择题
已知：数组：int[]al={2,3,5,7,11,13} int[]a2={1001,1002,1003,1004,1005,1006,1007 }在语句 System.arraycopy(a1,2,a2,3,4)执行后,数组int[]luckNumbers的值是( )。
A．{1001,1002,1003,2,3,4,1007}
B．{2,3,1003,1004,2,3,1007}
C．{1001,1002,1003,5,7,11,13}
D．{5,7,11,13,1005,1006,1007}