Which of the following statement/statements regarding policy analysis is/are correct?(i) It gained considerable popularity since 1960's.(ii) It was first adopted in the United States.(iii) It aims at improving the quality of a policy.(iv) It involves a wide range of studies and research activities.Select the correct answer from the codes given below:Codes:

• A. (ii) only
• B. (i) and (ii)
• C. (i), (ii) and (iii)
• D. (i), (ii), (iii) and (iv)