dirge: a lament for the dead, especially one forming part of a funeral rite.
The two are related as the second is the act performed on the antonym of the first.
Option A: Sunset : sunrise are just antonyms.
Option B: security check : arrival , even at the arrival a security check is done.
Option C:marriage : alimony, Alimony is a provision for a spouse on divorce.
Option D: welcome address: vote of thanks, not related
Hence Option C is correct
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