The Turks were defeated by Crusaders at Jerusalem because

Athey were severely outnumbered.
Cthey did not have horses.
Bthey suffered from the heat.
Dthey could not remain united. Please select the best answer from the choices provided

Verified Answer :

I think it was letter a.
they were outnumbered.  During the
First Crusades, a large force of European knights and Byzantine soldiers stormed  Jerusalem after taking many strongholds.  Jerusalem fell to the Crusaders and many
Crusaders cities were established.  The
succeeding Crusades were not so successful.

Hagrid

The Turks were defeated by
Crusaders at Jerusalem because they could not remain united. The answer is
letter D.  The Turks were subdivided into
states after the death of Malik-Shah I. Each state are antagonistic with each
other due to unequal distribution of land wealth.