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The function f(x)=2|x|+|x+2|-||x+2|-2|x|...

The function `f(x)=2|x|+|x+2|-||x+2|-2|x||` has a local minimum or a local maximum at x =

A

`-2`

B

`-(2)/(3)`

C

2

D

`(2)/(3)`

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