Which statement about Pay What You Want $($PWYW$)$ pricing strategy below is CORRECT?

$1$ point

In this strategy, customers will receive a product or service as long as they pay something.

A firm using PWYW strategy will set a reference and a minimum required price and customers are free to pay more than those prices.

This pricing strategy is considered sustainable and many firms may benefit from using it$.$

In this strategy, a firm may suggest a price. However, customers can get the product at any price they wish, even at no cost$.$