solver can follow reference link for solving other problems. thanks in advance. other problems:

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a) An airline has reviewed the flight schedule due to the COVID19 pandemic. The new flight connection that available in the west coast cities are only between Kuala Lumpur- Johor Bahru Kuala Lumpur, Kuala Lumpur-Penang-Kuala Lumpur, Johor Bahru- Penang-Johor Bahru, Johor Bahru-Alor Star-Johor Bahru, Johor Bahru-Langkawi- Johor Bahru, Kuala Lumpur-Langkawi-Kuala Lumpur, Kuala Lumpur-Alor Star-Kuala Lumpur, and Penang-Langkawi-Penang. i. ii. : Draw an undirected graph model representing this flight connection. Label all edges and vertices. (4 marks) Determine the degree of each of vertex in the graph (i). (2 marks) Is this graph () a simple graph? Justify your answer. (2 marks) The airline later introduces a special sightseeing trip that take off and land in Kuala Lumpur. Does this new route effect the answer in (iii) and why? (2 marks) iv. a) An airline has reviewed the flight schedule due to the COVID19 pandemic. The new flight connection that available in the west coast cities are only between Kuala Lumpur- Johor Bahru Kuala Lumpur, Kuala Lumpur-Penang-Kuala Lumpur, Johor Bahru- Penang-Johor Bahru, Johor Bahru-Alor Star-Johor Bahru, Johor Bahru-Langkawi- Johor Bahru, Kuala Lumpur-Langkawi-Kuala Lumpur, Kuala Lumpur-Alor Star-Kuala Lumpur, and Penang-Langkawi-Penang. i. ii. : Draw an undirected graph model representing this flight connection. Label all edges and vertices. (4 marks) Determine the degree of each of vertex in the graph (i). (2 marks) Is this graph () a simple graph? Justify your answer. (2 marks) The airline later introduces a special sightseeing trip that take off and land in Kuala Lumpur. Does this new route effect the answer in (iii) and why? (2 marks) iv