Briefing Apple Knowledge

What is one acceptable alternative solution to this issue?

You want to follow ESD prevention rules, but your work area is too small for you to be tethered with a wired wrist strap. What is one acceptable alternative solution
to this issue?

A.
Use a wireless wrist strap.

B.
Use a grounded ESD heel strap.

C.
Do not practice ESD prevention.

D.
Work on the floor instead of a table.