Josh lost his wallet and mobile phone when he was travelling to work by bus. The next

day, Josh received a call from a lady named Megan who found his wallet and mobile

phone. Over the phone, Megan told Josh that "You must sell me your mobile phone for

RM100 or else I will steal your bicycle, I know where your house is". Josh was too

frightened that Megan was going to steal his bicycle and agreed to Megan but now

regretted his decision.Explain, with reasons, whether the following contracts are valid, voidable or void.