Question $15($Mandatory$)(1$ point$)$

An Ice cream shop in Queens offers a wide selection of ice cream and frozen yogurt. It has three employees.

Assuming that there is unlimited demand.

Employee #$1-$ greets the customer and takes an order $-7$ minutes per customer.

Employee #$2-$ prepares an order$-4$ min per customer.

Employee #$3-$ takes payments $-6$ min per customer.

Each Employee is paid $$14$ per hour.

What is the average labor utilization?

A$)77\mathrm{.}78\%$

B$)33\mathrm{.}33\%$

C$)66\mathrm{.}67\%$

D$)80\mathrm{.}95\%$