To be compleatly honest with you im not realy sure
Yes, technically speaking this sentence is properly punctuated, although it should be noted that this is somewhat a matter of style, since there could be a period where the semi-colon is.
Answer:
The correct answer would be US
Ji-Li's aunt- humiliated by Red Guards because she refused to let children pick her mulberry leaves. Aunt Xi-Wen had to paste a da-zi-bao to her front door saying terrible things about her.