题目选项分析

Although inflammation in pregnant female dairy cattle, which occurs commonly just after birth, is a cause for concern among farmers—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 to lactation. 

Although a cause for concern among farmers, inflammation in pregnant female dairy cattle, which occurs commonly just after birth—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 to lactation.