（1）     GWD-21-Q19

Regardless of their form or function, all aerodynamically enhanced, curved objects made for throwing have been called boomerangs by non-Australians even since 1788, when Europeans saw Dharug-peaking men tossing “bumariny” in the area later known as Sydney.

A.      Regardless of their form or function, all aerodynamically enhanced, curved objects made for throwing have been called boomerangs by non-Australians even since 1788,

B.     Regardless of their form or function, any aerodynamically enhanced, curved object made for throwing has been called a boomerang by non-Australians even since 1788,

C.     Ever since 1788, non-Australians have called all aerodynamically enhanced, curved objects made for throwing boomerangs, regardless of their form or function, from

D.     Ever since 1788, any aerodynamically enhanced, curved object made for throwing has been called a boomerang by non-Australians, regardless of its form or function, from

E.     Non-Australians have called all aerodynamically enhanced, curved objects made for throwing boomerang ever since 1788, regardless of their form or function, from

答案A, 哪位能给分析一下吗？

这句话的语法构成应该是这样的：
（Regardless of their form or function）, (all aerodynamically enhanced), curved objects (made for throwing) have been called
            boomerangs (by non-Australians)( even since 1788),
主谓宾分别是curved objects
        have been called
            boomerangs。
Regardless of their form or function是have been called的状语，all aerodynamically enhanced是curved objects的同谓语。

有一些地方不太同意：

enhanced, curved objects为主语，两个并列的形容词可用逗号来共同修饰object

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