请教 OG174
A letter by Mark Twain, written in the same year as The Adventures of Huckleberry Finn were published, reveals that Twain provided financial assistance to one of the first Black students at Yale Law School.
(A) A letter by Mark Twain, written in the same year as The Adventures of Huckleberry Finn were published,
(B) A letter by Mark Twain, written in the same year of publication as The Adventures of Huckleberry Finn,
(C) A letter by Mark Twain, written in the same year that The Adventures of Huckleberry Finn was published,
(D) Mark Twain wrote a letter in the same year as he published The Adventures of Huckleberry Finn that
(E) Mark Twain wrote a letter in the same year of publication as The Adventures of Huckleberry Finn that
在OG-174中, OG的解释是as不能用作that一样当定语从句之引导词
同意！
但是是状语从句我就不能理解了，难道是引导in the same year （that the adventures of huckleberry finn was published）时间状语从句？
可是是否可以看成是that引导的同位语从句呢？ | 
