Given the following code snippet, what changes should be made for the JVM to correctly process this as a concurrent reduction? (Choose two.) 

A. Replace HashSet with LinkedHashSet.

B. Mark the stream parallel.

C. Remove the second argument of the collect() method.

D. Remove the third argument of the collect() method.

E. Replace HashSet with ConcurrentSkipListSet.

F. Mark the stream unordered.

var w= Stream.of ("c","a", "t") .collect (HashSet:: new, Set::add, Set::addAll); System.out.println(w);