Fill in the blank with a suitable preposition.
They met each other _______ Starbucks.
The given sentence needs to be filled with a preposition of place since it speaks about meeting at a place. Therefore ‘for’ which is preposition of reason wouldn’t be apt. Hence option D is incorrect. The preposition ‘at’ is used to denote an exact place/spot. Since the meeting spot is Starbucks ‘at’ is the apt answer. Thus option A is correct. On the other hand ‘on’ and ‘upon’ are both used to speak about placing something over something else. Since Starbucks is a place and not a surface or moving object options B and C are incorrect.