The four sacred months mentioned in the Holy Quran are Muharram, Rajab, Dhu al-Hijjah, and

(A) Ramadan
(B) Safar
(C) Dhu al-Qi’dah
(D) Rabi’ al-Awwal

The answer is: (C) Dhu al-Qi’dah
The four sacred months mentioned in the Holy Quran are Muharram, Rajab, Dhu al-Hijjah and Dhu al-Qi’dah.