What does the author mean by saying “The obsession with how to manage millennials is obscuring another potentially larger problem: How to manage their parents.” in the beginning ? （）
选项：

A:Companies need to pay more attention to better managing older workers.
B:Companies need to manage the parents of their workers.
C:Companies need to measure the size of the skills gap that they could fall into as many more people retire from the workforce than join it.
D:Companies need to deal with the shortage of workers.