Pizzas are to be delivered in 20 minutes (target). Pizzas delivered more than 10 minutes late incur a penalty of $2 off the pizza bill. Delivery costs are estimated at $2 but decline at the rate of $0.12 for each minute deviation from target. How much variation should be allowed in the delivery service if we assume the use of loss function for the penalty cost?

Group of answer choices

2 minutes

2.5 minutes

3.5 minutes

3 minutes