4:]. Melanie decides that it's in her best interest to open up a second cashier who will he paid at the same rate and expected to service customers at the same rate. Customers will stand in one ne and go to the next available cashier as they:r become open. How will this change her total service and waiting cost for a weekend? Customers' waiting cost in line remains at $T5u". For this new system, Pa = H.429. A. Increase costs by $412 E. Decrease costs by $1331 C. Decrease costs by 963011 B. Increase costs by $1131