(a) Samad is a third-year college student. He needed to work as a part-time waiter in a nearby restaurant to support his tuition fees and living expenses. Unfortunately, Samad's CGPA dropped drastically in the previous semester because he skipped some classes as heavy workloads from the part-time job. If his CGPA continues to decline, he might be unable to graduate on time.

Based on the scenario above, identify Samad's opportunity cost as a part-time waiter and discuss whether Samad should reduce his part-time job hours. (6 marks)

(b) Kimberly is a smartphone producer in city ABC. She plans to expand production as the market demand in city ABC is increasing. Identify and discussTWO (2)factors that might influence her production expansion. (4 marks)

(c) Income elasticity of demand is used to measure the responsiveness in quantity demanded of a good to changes in the income. Furthermore, the sign and coefficient value of the income elasticity of demand determinesthe type of good and the degree of elasticity of the good towards income changes.

With an appropriate example, identify and explain the effect of the income changes towards the quantity demanded with a positive coefficient value larger than 1. (5 marks)

(d) The Malaysian government announced a ceiling price for the Antigen Rapid Test Kit (RTK Ag) and reversed transcription polymerase chain reaction (RT-PCR) to make them accessible and affordable. Such actions are able to release the healthcare system burden in Malaysia.

Using an appropriate diagram, explain the effects of the price ceiling implementation on the Covid-19 screening test kits. (10 marks)