The correct answer is option 1: Pakistan and Afghanistan. India shares land boundaries in the northwest with these two countries. This means that India has a border with Pakistan and Afghanistan in its northwestern region. It is important to note that the land boundaries of a country determine its neighboring countries with whom it shares a physical border. In this case, India`s northwestern region borders Pakistan and Afghanistan. Option 2 (China and Nepal), option 3 (Myanmar and Bangladesh), and option 4 (Sri Lanka and Maldives) are incorrect as they do not correspond to the correct land boundaries shared by India in the northwest.