Jack has won a jackpot prize. 10% of it was donated to flooded areas.

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Jack has won a jackpot prize, 10% which half was donated to flooded areas.

Jack has won a jackpot prize, 10% of which was donated to flooded areas.

Jack has won a jackpot prize, 10% of that was donated to flooded areas.

Jack has won a jackpot prize, which was donated to flooded areas.

Giải thích

Đáp án B

Giải thích:Khi mệnh đề thứ hai có sở hữu dùng danh từ chỉ người thì ta dùng từ "whose", còn chỉ vật thì ta dùng "of which”

Tạm dịch: Jack đã giành được một giải thưởng jackpot, 10% trong đó đã được tặng cho các khu vực bị ngập lụt.