Concept:The arrangement of the Quran refers to the order of surahs in the standard mushaf.Explanation:The Quran is arranged such that Suratul Fatihah is the first chapter.It is also known as the opening chapter, and the Quran begins with it.Suratul Alaq was the first surah revealed, but it is not the first in the arrangement.Therefore, in the arrangement of the Quran, the first surah is Suratul Fatihah.Answer:B. Fatihah