अंबाला को भारत में पारंपरिक रूप से किस प्रकार के कार्यात्मक नगर के रूप में वर्गीकृत किया गया है?

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: