Banu Quraiza, Banu Nadir and Banu Qainuqa were three tribes of the_________?

A. Muslims
B. Christians
C. Jews
D. None of these

The Banu Qurayza were a Jewish tribe which lived in northern Arabia, at the oasis of Medina (previously known as Yathrib). They were one of the three major Jewish tribes of the city, along with the Banu Qaynuqa and Banu Nadir, before their elimination by the Islamic prophet Muhammad.

The Banu Nadir were a Jewish Arab tribe that lived in northern Arabia at the oasis of Medina until the 7th century. They were expelled by the Islamic prophet Muhammad after his defeat at Uhud against the Quraysh, who finally took decisive action against his constant marauding attacks on their trade caravans and to revenge themselves for Badr.

The Banu Qaynuqa was one of the three main Jewish tribes that originally lived in Medina (now part of Saudi Arabia) before being expelled by the Islamic Prophet Muhammad. They were merchants and were known to be wealthy. They resided in the south-west part of the city and were previously allied with the Banu Khazraj.