Read the passage from a credible source.

Napping has become a part of the business world in some countries. In Japan, a study of law offices by the University of Tokyo showed that taking a 30-minute daily nap increased the employee productivity of staff attornies by 25%. Those same employees exercised at least 60 minutes per day and ate a mostly vegetarian diet.

Which detail would be best suited to incorporate into a persuasive essay arguing the benefits of taking a daily nap?

Those same employees . . . ate a mostly vegetarian diet.

In Japan, a study of law offices by the University of Tokyo showed that taking a 30-minute daily nap increased the employee productivity of staff attornies by 25%.

Napping has become a part of the business world in some countries.

Those same employees exercised at least 60 minutes per day.