Answer:
Realistic conflict.
Step-by-step explanation:
This theory was been said to be made to come to limelight by Muzafer Sherrif. And this theory is simply explained to be a social psychological model where different intergroup conflicts fight to gain a particular resource which has proven itself of a limited supply to these groups altogether. It is seen to arise due to the competition found amongst these inter-groups over the scarce resources and conflicting goals.
It is seen to also be explained as the prejudice and discrimination that exist between the two groups will continue to rise as the conflict over limited land in the region continues.