Which of the following American / Latin American countries is not among negotiating parties to the Trans-Pacific Partnership (TPP)?

Which of the following American / Latin American countries is not among negotiating parties to the Trans-Pacific Partnership (TPP)?
[A]Peru
[B]Chile
[C]Brazil
[D]Mexico

Brazil
TPP is a giant free trade deal between the U.S., Canada, and 10 countries in the Asia-Pacific region including Australia, Brunei, Chile, Malaysia, Mexico, New Zealand, Canada, Peru, Singapore, Vietnam as well as Japan and potentially South Korea also. The talks have failed to conclude so far.

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