To prepare the feasibility report of the fly-over project for MDR at railway crossing, which of the following points are examined?(i) The basic model of the flyover with respect to width, length of the approach road, etc.(ii) Approximate cost of construction and source of fund.(iii) Detail drawings(iv) Specifications of each item with a complete description

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