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Which statement flattens myArray when it can be arbitrarily nested?

myArraym can have one level, two levels, or more levels.

Which statement flattens myArray when it can be arbitrarily nested?
A . myArray. reduce ((prev, curr) => prev.concat(curr) [ ]);
B . myArray. join (","). split (",");
C . [ ] .concat {. . .myArray) ;
D . myArray.flat(Infinity);

Answer: A

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