Hansel just bought 100 N95 masks to sell during the pandemic.Hansel realizes he doesn't have enough and calls Gretel on the phone to see if she has any extra.Hansel offers to pay Gretel $500 if Gretel sends him 50 N95 masks within 48 hours.Gretel needs the money, so she promises to send Hansel the 50 masks within 24 hours.Please explain what type of contract was created, if any?

Does it matter that all of the interaction between Hansel and Gretel occurred through cell phone conversations and voice mail? Why or why not?