Which of the following should be the functions of the District and Metropolitan Planning Committees according to the 2nd ARC?(i) Integration of spatial economic development.(ii) Concerted rural and urban planning.(iii) Advice and assistance to local bodies in the preparation of development plans and their effective implementation.(iv) Advice to the Planning Commission in the preparation of Five Year Plans.Select the correct answer by using the codes given below:Codes:

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