GMAT Sentence Correction (SC) | Re: Although a cause for concern in farmers,

Although a cause for concern in farmers, inflammation in female dairy cattle, which occurs commonly after they givebirth[/u] -- many disorders, including metabolic diseases such as ketosis and fatty liver, are known to occur at this time -- it is believed to play a beneficial role in the complex process of going from late pregnancy tolactation.

As we read the Q stem ,we realize that the underlined portion has to stand out as a complete sentence on its own..

(A) Although a cause