The National Highway Authority (NHA) is planning to upgrade inter-city roads connecting various cities in Pakistan. In an initial survey, they chose the following roads, and estimated their up-gradation costs in millions (PKR): . N1: Karachi -- Sukkar for 8m N2: Karachi -- Quetta for 30m N3: Karachi -- Hyderabad for 10m • N4: Hyderabad -- Bahawalpur for 20m N5: Hyderabad -- Quetta for 15m • N6: Quetta -- Peshawar for 80m N7: Bahawalpur -- Peshawar for 12m • N8: Karachi -- Lahore for 100m • N9: Bahawalpur - Lahore for 20m • N10: Peshawar -- Lahore for 5m Since NHA is facing a severe budget shortfall, they want to minimize the total cost. They seek your help to identify such roads so that if they are upgraded, connect all the cities with a minimum cost. The list of cities includes Karachi, Sukkar, Quetta, Hyderabad, Bahawalpur, Lahore; and Peshawar. |Draw a graph of the NHA road network. Choose an appropriate algorithm to find the solution for NHA. Apply that algorithm 1. find the answer. 2.

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