As in young's double slit experimentIn Young's double-slit experiment, we know that a photon goes through either of one of the slits but we don't know which one, and it ends up on a screen.
I want to know which theory can explainpredict to the best possible extent thatwhether a photon will go through the upper slit or the lower slit and where it will end up on the screen.
Out of all these theories (special and general relativity,quantum quantum mechanics,quantum quantum field theory,string string theory,quantum quantum gravity,M M-theory etc) which can explainpredict this to best possible extent?