_______ student could tell you where the college library is located.

'Any' with a singular countable noun in an affirmative sentence means 'every one without exception' - it doesn't matter which one. The sentence implies that any random student would know the library's location. 'All', 'Some', and 'Few' require plural nouns ('students'), but the noun here is singular ('student'). Therefore, 'Any' is the correct determiner.