Demetrio is a sporting goods distributor. Unfortunately, Demetrio will not be able to meet a promised delivery date on a shipment of Little League athletic jerseys and needs to inform the customer. This may upset the customer because it will mean that some Little League players may not have their new jerseys in time for several preseason practice games.

Which "silver lining" counterproposal would be appropriate for Demetrio to include?

Since the shipment is delayed, we will include four packages of official Little League game balls free of charge.

Since the shipment is delayed, every purchase for the next year will be $50$ percent off for Little League customers.

Since the shipment is delayed, all $130$ jerseys will be free.

What advice should you give Demetrio in preparing the conclusion of the message? Check all that apply.

Avoid statements that encourage future controversy: $"$If this is unsatisfactory, please let us know."

Add a unifying quality to the message: $"$It will surely be a great season!"

Include willingness to assist in some way: $"$We will contact you as soon as the jerseys arrive."