Which of the following is TRUE about an 'irrevocable' letter of credit under UCP 600?
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A
It can be cancelled by the buyer at any time without notice to the exporter
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B
All LCs under UCP 600 are deemed irrevocable — revocable LCs no longer exist under this version
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C
It can be amended only with the consent of the issuing bank but not the beneficiary
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D
It automatically renews each year until the buyer cancels it