The old farmer,_____ the badly injured and burnt soldier,cam

The old farmer,_____ the badly injured and burnt soldier,came out of the burning farmhouse,calling continuously for help.
选项:a、supporting b、 having supported c、 being supported by
d、 being supported
选哪个?为什么?请分析并翻译整句

A
1.那个士兵受伤严重,所以他不可能扶撑农民,而是农民扶撑他.
该句的主语是农民,所以他应该是扶撑的主语,也就是说the old farmer和support之间是主动而不是被动关系,去掉CD(CD都表示农民被战士扶撑着);
2.而support扶撑的动作和主句的动作came out of...是同时存在的,一边扶撑着战士,一边从农房里出来,不存在着先后关系,所以去掉B(B表示这两个动作有明显的先后关系).
3.翻译:那个老农民扶撑着一位严重受伤而且被烧伤的战士.老农民他从那所正燃烧的农房里走出来,不断大声地喊着求救.