求问OG12 36题，觉得以前的解释都看不明白啊

og36. Dressed as a man and using the name Robert
Shurtleff, Deborah Sampson, the first woman to draw
a soldier’s pension, joined the Continental Army in
1782 at the age of 22, was injured three times, and
was discharged in 1783 because she had become too
ill to serve.
(A) 22, was injured three times, and was discharged
in 1783 because she had become
(B) 22, was injured three times, while being
discharged in 1783 because she had become
(C) 22 and was injured three times, and discharged
in 1783, being
(D) 22, injured three times, and was discharged in
1783 because she was
(E) 22, having been injured three times and
discharged in 1783, being

OG对于D的解释说injured必须被动~~可是injured three times 不可以理解成插入语么？－ｅｄ本身就表示被动了啊～～

补充LS。
提出主干就是DS did，did，and did……这句话的这三个did的动作有种按时序发生的意思。三个中间都用comma隔开。如果仅仅只是两个动作并列的话and was discharged前面不需要comma。即 DS did and did。