[求助]大全206(最近15-2）being

206．Charles Lindbergh, for his attempt at a solo transatlantic flight,
was very reluctant to have any extra weight on his plane, he therefore refused to carry even a pound of mail, despite being offered $1,000
to do so.

(A) Charles Lindbergh,
for his attempt at a solo transatlantic flight, was very reluctant to have any
extra weight on his plane, he therefore

(B) When Charles
Lindbergh was attempting his solo transatlantic flight, being very reluctant to
have any extra weight on his plane, he

(C) Since he was
very reluctant to carry any extra weight on his plane when he was attempting
his solo transatlantic flight, so Charles Lindbergh

(D) Being very
reluctant to carry any extra weight on his plane when he attempted his solo
transatlantic flight was the reason that Charles Lindbergh（E）

(E) Very reluctant
to have any extra weight on his plane when he attempted his solo transatlantic
flight, Charles Lindbergh

请问B中错误是否是由于being造成的，看前人贴说being应该去掉，但我在google上搜出了挺多这样的用法

还有E中形容词短语reluctant to do如何能作状语呢？没有见过这样的语法现象啊，请高手指点。

答案是E吗？

因为B没有主要main clause，when..,,being very reluctant to have any extra
weight on his plane, therefore…, despite….

至于(E)不要看
        when子句，你是不是比较看得懂呢？Very reluctant修饰Charles Lindbergh

Very
reluctant to have
            any extra weight
on his plane, Charles Lindbergh refused to carry
even a pound of mail, despite being offered $1,000 to do so.

浅见！