[求助]OG11 SC 72题疑问

OG11，SC72

72. Architects and stonemasons, huge palace and  temple clusters were built by the Maya without  benefit of the wheel or animal transport.

(A)       huge palace and temple clusters were built by the Maya without benefit of the wheel or animal transport

(B)       without the benefits of animal transport or the wheel, huge palace and temple clusters were built by the Maya

(C)       the Maya built huge palace and temple clusters without the benefit of animal transport or the wheel

(D)       there were built, without the benefit of the wheel or animal transport, huge palace and temple clusters by the Maya

(E)       were the Maya who, without the benefit of the wheel or animal transport, built huge palace and temple clusters

正确答案是C，但是我一直搞不明白，这句话的主语到底是什么，architect and stonemasons还是the Maya，感觉不通啊，请教一下大家，看看大家是怎么理解的，谢谢啦！！

architect and stonemasons 做同位语修饰the maya ，主语是the maya .