Which of the following statement/statements is/are correct about Bharatmala Pariyojna? 1. It envisages replacement of level crossings on national highways by road over bridges/road under bridges. 2. It aims to develop the road connectivity to border areas. 3. It aims at development of coastal roads including road connectivity for non-major ports. 4. It aims at the improvement in the efficiency of national corridors. Select the correct answer using the code below: