The Ozone Day is observed every year on September 16 as on this day in 1987 the ___________was signed for launching efforts to arrest the depletion of the fragile ozone layer in the stratosphere that prevents the harmful ultra-violet rays of the sun from reaching the earth. Fill the correct word in blank.
[A] Montreal Protocol
[B] Geneva Protocol
[C] Kyoto Protocol
[D] Nagoya Protocol
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