Answer:
d. free choice
Step-by-step explanation:
Yes! it is true that some of the firms provides their workers very good and comfortable facilities to work on. In the scenario which is given in the question , that what the firm has decided an what it belief led to domain of free choice.
Because free choice which is also known as freedom of choice. In this one has given multiple choice and he/she has also given freedom to choose any of the multiple choice.
And we can see that the firm is also providing multiple varieties as well.