Would the task statement $"$Is kind to customers" be an example of a strong task statement for a customer service position?

$$ No$,$ because sometimes customer service reps must be firm

No$,$ because task statements should not be a policy

Yes, because kindness a critical characteristic of the job

Yes, because kindness is a bona fide occupational qualification $($BFOQ$)$

Impossible to tell without an understanding of the broader job context