Question 4 (a) Why is casual work in the informal sector is not regarded as decent work? (b) Discuss if the following examples would be regarded as discrimination in hiring. (i) A Singaporean company hiring a manager for the Shanghai ofce advertised for Mandarin speakers only. A Malay who speaks perfect Mandarin applied for the job but was told that the company is lookin at hiring a Chinese. . (ii) A Chinese restaurant with no Muslim staff intends to get halal certification. The restaurant advertised for a Muslim chef. - (iii) A travel agency that specialises in Muslim Pilgrimage (Haj and Umrah) travels advertised for a travel coordinator. The advertisement stated \"only Malays need to apply\