Explanation
The correct spelling is D: Deceased.
Deceased is an adjective that is used to describe someone who has passed away or died. It is commonly used in formal and legal contexts to refer to someone who has recently died.
Option A, "Deseased," is an incorrect spelling of the word.
Option B, "Decseesed," is also an incorrect spelling.
Option C, "Deceaced," is an incorrect spelling as well.
Therefore, option D, "Deceased," is the only correct spelling of the word.
