a)You return someone's cat, and later see there was a $50 reward offered for this. Can you go back and claim the $50 reward? Yes/ No

b)Acceptance must always be communicated. Yes/ No

c)You offer to sell your car to "A", and promises "A" that you will keep the offer open for one (1) week. Can you sell it to "B" the next day? Yes/ No

d)You hand a letter of acceptance to a postman delivering letters. If it gets lost, is there a binding contract? Yes/ No

e)If the offer says "reply by post", and you accept by fax, there is no valid acceptance, since it was not made the proper way. True/ False

What are the answers? (complete is better)