Rearrange the following five sentences/group of sentences (A), (B), (C), (D), and (E) in the proper sequence to form a meaningful paragraph; then answer the questions given below them.

(A) For sustainable and livable cities a proper management of waste is important, but it remains a challenge for many developing countries and cities.  

(B) Waste management can be termed as the activities and actions required to manage waste from its inception to its final disposal. 

(C) Operating this essential municipal service requires integrated systems that are efficient, sustainable, and socially supported.

(D) A report found that effective waste management is relatively expensive, usually comprising 20%–50% of municipal budgets. 

(E) This includes the collection, transport, treatment and disposal of waste, together with monitoring and regulation of the waste management process and waste-related laws, technologies, economic mechanisms.