The old lady when I was in the countryside is said to be still very much alive though in her nineties.
A. after whom I looked
B. whom I took care
C. who I looked after
D. of whom I took care
网友回答
A. after whom I looked
B. whom I took care
(答案→)C. who I looked after
D. of whom I took care
解析：此定语从句的正确说法是whom I took care of/whom I look after。take care of/look after 是固定短语，介词of/after在定语从句中不能提前。