What is the proper option to put in /etc/fstab to enable group quotas for a particular parition?

What is the proper option to put in /etc/fstab to enable group quotas for a particular parition?

A.
groupquota

B.
grpquota

C.
groupquotas

D.
grpquotas

Explanation/Reference:
Use grpquota for groups or usrquota for users in /etc/fstab