Given: Which two code fragments, inserted independently at line 3, generate the output 4247? ()
AString s = "123456789";s = (s-"123").replace(1,3,"24") - "89";
BStringBuffer s = new StringBuffer("123456789");
Csdelete(0,3).replace(1,3,";24";).delete(4,6);
Dsubstring(3,6).delete(1,3).insert(1, ";24";);
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