The correct option is A Pratiharas
The Battle of Rajasthan is a battle (or series of battles) , taken place in 738 A.D., somewhere on borders on modern Sind-Rajasthan. In the battle, the Gurjar Hindu alliance of Nagabhata I of the Pratihara Dynasty and Vikramaditya II of the Chalukya dynasty defeated the Arab invaders. The Arabs crossed over to the other side of the River Indus, abandoning all their lands to the victorious Indian kings.