Suppose a hospital implements appointments to patients rather than randomly accepting them, waiting time in the queue then $\_\_\_\_\_\_\_\_\_\_.$ The $\_\_\_\_\_\_\_\_\_\_$component in the waiting time in the queue formula is affected due to the change from randomly accepting patients to implementing appointments.

Group of answer choices

Drops, Variability effect

Increases, Variability effect

Drops, Service Time effect

Increases, Utilization effect

Drops, Utilization effect