单项选择题

Just where exactly is my home In Britain of course. I was born here, grew up here—I had no choice in the matter. From an early age I got used to the way of life here—after all, how could I survive if I didn’t I came in contact with the British, I never felt any hostility towards them; I never wanted to cause any offense. But what have I in my turn received Racial discrimination. This has. been embodied in countless incidents.
It was in middle school that racial discrimination was most obvious. I was often the victim of racial taunts. After undergoing such a humiliation, I would feel a mixture of anger and depression. However, the worst thing was knowing hell well that even if I reported this to a teacher. It would be to no avail. Outside school, racial discrimination is far subtler. Some English—it’s all over their face.
Of course, a British person will probably think I’m paranoid or just too sensitive, a depressive even. Perhaps the latter may have some truth in it. Nevertheless, it is reality that has created this aspect of my character. Besides, how could the average British person possibly understand
Sometimes, doing my best does not necessarily lead to success. Often, this is not duc to myself, but duc to the environment. It’s as though I’m a second class citizen. Although my passport is British, I’m a nevertheless Chinese. Is Britain really my country
In the last sentence of the second paragraph, the word "it" refers to ______.