1. Building large new hospitals in the bistate area would constitute a wasteful use of resources, on the basis of avoidance of duplicated facilities alone.

(A) on the basis of avoidance of duplicated facilities alone

(B) on the grounds of avoiding duplicated facilities alone

(C) solely in that duplicated facilities should be avoided

(D) while the duplication of facilities should be avoided（E）

(E) if only because the duplication of facilities should be avoided

请问这里的if only because作何解？

我的理解，if only这里是副词，修饰because，意思还是“只要”。

这句的主干是Building large new hospitals in the bistate area would constitute a wasteful use of resources, because the duplication of facilities should be avoided。

if only起了个加强语气的作用。