冠词的英语语法题.The soldier was wounded in ______ ,but she caught t

The soldier was wounded in ______ ,but she caught the enemy officer by ______ A.
A the knee ；the arm
B his knee ；her arm
C his knee ；the arm
D the knee ；her arm
因为后面是she,所以BC中his明显不符合；所以前面用the knee,后面抓住敌人,没说敌人是男是女,不是她自己,所以不能用her arm,只能用the arm
很高兴为您解答,skyhunter002为您答疑解惑
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in the knee在膝盖上，词组。后一个用the 特指手臂