B

After the initial physiologic remodeling that can reach ≈1–1.5 mm in the first year, the classic Albrektsson success criteria state that vertical bone loss should not exceed about 0.2 mm per year thereafter, and contemporary reviews still quote “≤0.2 mm annually” as the threshold for a functioning implant [Albrektsson, 1986, PMID 3527955; Spinato, 2023, PMID 38530371]. Hence the expected annual loss after year 1 is well under 0.1 mm, making option B the best match.