'A' is sent to find the lost nephew of 'C'. Meanwhile, 'C' offers to advertise a reward of Rs.501 to the person who finds his nephew. 'B' finds the boy and then, knowing about the prize, claims it. Officer of 'B' award-

• A. Is
• B. no because the proposition is common
• C. No because the consideration is insufficient
• D. No because the communication of the offer was not given to him