Adam makes a written offer to ben to sell a car for $5000 and a radio for $200.he stipulaes that the offer must be responded to 1 july 2011.on the receipt of the offer ,ben telephones adam,found him absent and leaves a massage that he could pay only $200 for the radio and wanted to know the model of the car.on reading the massage and well before 1 july 2011,adam seeks to sell the car to chipo. what legal position in law between adam and ben at the time to seek to sell the car to chipo.