Four Sacred months of the Hijri Calendar are? Dhil Qaad, Dhil Hajj, Muharram and Rajab

a. Muharram, Rajab, Jumada al-thani (Jumada II), Shawwal
b. Thul-Qi’dah, Dhu al-Hijjah, Muharram and Rajab
c. Safar, Sha’ban, Rabi’ al-Awwal (Rabi’ I), Shawwal
d. Dhu al-Hijjah, Ramadan, Rabi’ al-awwal (Rabi’ I), Sha’ban