c) Johnny and Amber are a newly married couple. Johnny currently work as a Computer Programmer and pursuing his study at Universiti Selangor. He makes a promise to pay Amber RM10.000 if Amber help him with his assignments until he finishes his studies. On 2021, Johnny successfully graduated and obtained his degree. When Amber claimed the RM10,000 as per promised, Johnny refused to pay Amber and said that is a part of her duties as a wife. Advice Johnny and Amber as to whether there is a contract among them. Support your answer with Contract Act 1950 and decided cases.