A) Ayat-ul-Kursi
B) Ayat-ud-Dayn (verse of debt, Al-Baqarah 282)
C) Verse 1 of Surah Al-Fatihah
D) Verse 30 of Surah An-Naml
Correct Answer: B) Ayat-ud-Dayn (verse of debt, Al-Baqarah 282)
Explanation: Ayat-ud-Dayn (Al-Baqarah 282), about loans, is the longest single verse.