The next few questions will focus upon the following argument:

While afternoon sleepiness may just seem like a good reason to grab a cup of coffee, serious problems can occur when people are tired on the job. Sleepy people make more mistakes and have poorer judgment. An easy solution to this problem is to introduce napping breaks along with the other breaks companies give their workers. However, there is a serious concern that people will often end up groggier or even more tired after a nap, making such napping breaks ineffective.

What is the main issue at stake in this passage?

Whether napping breaks would reduce the number of sleepy workers

Whether napping breaks would be effective

Whether sleepy people make more mistakes and have poorer judgment

Whether afternoon sleepiness is a good reason to grab a cup of coffee

Whether companies should establish napping breaks at work