请教几道SAT语法题

请教几道SAT语法题
11.The famous battle depicted in the film Braveheart took place in northern England,and many people assume that it was the Scottish Highlands.
(A)and many people assume that it was
(B)many people assuming
(C)but many people assume it to be
(D)not what many people assume
(E)not,as many people assume,in
D为什么不对
9.A review of the composer's new symphony called it confusing because of its unusual structure and its melodious final movement makes it elegant.
(A)structure,and its melodious final movement makes it elegant
(B)structure,although elegant by having its melodious final movement
(C)structure,and it is elegant with its melodious final movement
(D)structure while having a melodious final movement that made it elegant
(E)structure but elegant because of its melodious final movement
这题选E是因为是平行结构吗,A为什么不对
The new regulations have so complicated the process of formulating a school budget to where no one on the Board of Education is eager to undertake the task.
(A)budget to where
(B)budget,therefore
(C)budget,even
(D)budget as
(E)budget that
这题为什么选E,最好能分析一下句子结构,句子没看明白