How can queueing promote equity by charging those first in l

How can queueing promote equity?

by charging those first in line (or those near the top of the list) an expensive queueing fee.

if being first in line (or positioning oneself near the top of the list) does not require any fee

by charging the first 200 patients a higher and expensive queueing fee than the next 300 patients.

all of the above

	a.	by charging those first in line (or those near the top of the list) an expensive queueing fee.
	b.	if being first in line (or positioning oneself near the top of the list) does not require any fee
	c.	by charging the first 200 patients a higher and expensive queueing fee than the next 300 patients.
	d.	all of the above

d. all of the above