Concept:The word “evanescence” refers to the process of vanishing or fading away. Its correct spelling is derived from Latin “evanescere.”Explanation:Check each option against the standard spelling.Option A: Evanescence — matches the correct spelling.Option B: Evinescence — has an incorrect “i” after “v”.Option C: Evaneccense — has double “c” and wrong ending.Option D: Evanescense — has “sc” instead of “sc” and extra “e”.Only option A is the correct spelling.Answer:A. Evanescence