Individual discrimination would be one person discriminates against any particular people group. Institutional discrimination would be that an entire institution discriminates against any particular sect of society. An example would be when schools were segregated into white schools and black schools.
Answer:
Option D is correct - The Harappan civilization fell to Aryan invaders.
Explanation:
Option A is not correct as we were not able to decipher their letters yet.
Option B is not correct as Harrapan civilization didn't managed to develop outside the borders of Ancient India, while Egyptian civilization affected many regions, including Middle and Near East.
Option C is not correct because the cities of Harrapan civilization were regarded as the largest and most developed cities of the time.
D is correct as after the collapse of civilization invaders from the North came and started a new period, known to us as Vedic period.
I wanna say the answer is A but then C seems like it could be it too.
I choose d) Nigeria
sorry if I'm wrong