"Absurd" means wildly unreasonable or illogical, so the opposite or antonym would be "Reasonable," which denotes something logical and sensible. Therefore, option (D) Reasonable is the most suitable antonym in this context.

"Detrimental" means causing harm or damage, so its antonym would be "Harmless," which indicates something that does not cause harm or injury. Therefore, option (B) Harmless is the most suitable antonym in this context.

The most appropriate antonym for "sinks" in the given sentence is "floats." In the context of the sentence, "sinks" likely refers to the opposite action of floating. The other options— "create" (make), "parade" (a public procession), and "strolling" (walking leisurely)— are not antonyms of "sinks" in this context.

In the context of the sentence, "malice" refers to a desire to cause harm or suffering to others. The opposite or antonym of malice is a positive quality like "grace," which typically conveys kindness, elegance, and goodwill. Therefore, option (B) grace is the most appropriate antonym in this context.