I would like to thank my lecturer, Dr Izyan Izzati who always gives her best when giving us lectures every week while also giving me a lot of guidance to complete the assignments that are given to me. Without her crystal clear explanation and interactive ways of teaching, the class has become more fun and enjoyable for me while also providing me with a great understanding of the subject. In addition, her dedication in guiding us during working on my assignment is very helpful therefore I really want to express my gratitude to my lecturer as her assistance means a lot me and my groupmates as we struggle to complete our assignment. Last but not least, I hope that I can learn from you in the next year.