Who was the first martyr in Islam?

A. Hamza ibn Abdul-Muttalib
B. Umar ibn al-Khattab
C. Sumayyah bint Khayyat
D. Khalid ibn al-Walid

Answer: Sumayyah bint Khayyat


Additional Information: Sumayyah bint Khayyat was the first martyr in Islam, killed for her belief in the early days of Islam.