请教语法（张振民）

WalkByFaith

Building large new hospital 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
(C)solely in that duplicated facilities should be avoided
(D)while the duplication of facilities should be avoided
(E)if only because the duplication of facilities should be avoided

If only 在这里是什么意思，另外，IF ONLY 使用的时候不是要用虚拟的吗？
为什么解释中说，IF ONLY 可以代替ALONE 呢？

WalkByFaith

点醒梦中人！！

非常感谢