Arrange the following urban settlement units in hierarchy from lowest to highest order: 1. Metropolis2. Hamlet3. Town4. City

Who wrote the famous book 'Cities in Evolution'?

Given below are two statements, one labeled as Assertion (A) and the other as Reason (R): Assertion (A): Urban renewal can be a vital tool for alleviating slum conditions and stimulating the physical and economic revitalization of cities. Reason (R): Urban renewal programs in central cities are often limited by suburban resistance to integrating lower-income and racially diverse families. Select the correct answer using the codes given below: