Which fact when they support the argument for kurdish independence?
a. kurdish schools and broadcast are now permitted in turkey.
b. the british included kurds in iraq when they formed that nation.
c. most kurds practice sunni islam rather than shia islam.
d..kurds have been violently repressed by outside governments in the past.

If I understand you correctly, then the correct answer in your case would be D - Kurds have been violently repressed by outside governments in the past. This happened because in the geographic areas that are native for the Kurdish populations, it was not in the interest of neither Iraq or Turkey for example, to let them have their own state.