Harmony and form in early beatle songs can include which of the following?

a. songs that adhered primarily to the verse-refrain-chorus-bridge format, though with variations
b. buddy holly-inspired songs in major keys using primarily i, iv, and v chords
c. twelve-bar blues featuring i-iv-v chords all of the choices

Urban growth invariably feeds increased commercialization and industrialization. it requires continually expanding land areas. when urbanization rates are high, and countries do not have the institutional and managerial capacities or economic wherewithal to manage such rapid growths, they exert intense pressure on the types and nature of the resulting settlements. they contribute to the development of overcrowded slums and shanty towns without adequate essential services and necessary infrastructure.-by asit k. biswas and cecilia tortajada