operational definition for Scenario C

$.$

$$A scientist is interested in studying the effects of work from home

$($

WFH

$)$

$$days on employee productivity. She gives

$1$

$0$

$0$

$$employees the sales department of company A the new policy where they are given the opportunity to work from home for two days per week with a flexible schedule, and

$1$

$0$

$0$

$$employees in the sales department of company B receive a typical in

$-$

office work schedule with the option to work from home only

$1$

$$Friday per month. How many levels are there for the independent variable in Scenario C

$?$