Correct option is D
A - Realistic Conflict Theory → II
Proposed by Muzafer Sherif, this theory suggests that prejudice and discrimination arise from competition over limited resources.
Example: Robbers Cave Experiment, where boys in competing groups developed hostility.
B - Social Identity Theory → III
Developed by Tajfel and Turner, it explains how individuals develop a sense of identity based on group membership and show favoritism toward their in-group.
C - Contact Hypothesis → IV
Proposed by Gordon Allport, it suggests that direct contact between conflicting groups can reduce prejudice if certain conditions (equal status, common goals) are met.
D - Relative Deprivation Theory → I
This theory explains how people feel discontent when they perceive themselves as worse off compared to others.