An oral contract has to rely on the memory of the witnesses and is more difficult to prove whereas a written contract is a physical copy of the contract.
An oral contract has to rely on the memory of the witnesses and is more difficult to prove whereas a written contract is a physical copy of the contract. Also you take someone to court over a written contract. Also written contracts are legally binding where oral contracts are not. Over all you should definitely stick with written contracts over oral ones.
(C) Since 1/2 and 3/4 are both either equal to or greater than 1/2, the total must be equal or greater than 1. So, 4/6 is not a reasonable answer, as 4/6 is less than 1.