Just to let you know that most people in 1600 rating don't study 20 moves deep Against the KID I would suggest to play the saemisch (you know the f3 move) and then go for a king side attack, which been attacked in the king side is something KID players hate. If you don't want to play against the grunfeld then just don't play the e4 move and go for a normal looking queen pawn structure. Remember that a 1600 player normally loses a pawn in every 16 moves So just get them out of theory and search every, and i really mean every possibility. Finally you could try the bayonet attack, which is so strong that I even played it with black pieces against the king indian attack, and that means a loss of a tempo, and i won a 1700+ player without even getting in danger. If you decide to play the bayonet consider the hit g2-g4 during the game which slows tooooooo much black's king side attack

My understanding was always that strictly speaking it's not a Torre unless White plays e3 and black plays e6. But anyway, I would go with choice "d" none of the above. If you know you're opponent is going to play KID, just learn the classical Bayonet. I play 1. e4 almost every game except against these two kids at my club because I know they'll play the KID (I really think the Bayonet is that strong). If you think you're opponent may play the Grunfeld (and don't want to play against it), though, or simply don't like d4, c4 pawn structures, I would vote for the Veresov for 2 reasons: (1) A bishop on g5 in the KID (and similar positions) is generally much more annoying than a bishop on f4, and (2) The Veresov (as opposed to the "Torre") pretty much forces black to play d5 (which is annoying to KID/Pirc/Modern players who prefer d6 structures.

To reiterate, I have to say that none of these lines is likely to have "sting" against one of the most solid setups in chess. Even in some of the most agressive lines (such as the Saemisch), it is difficult for white to really put serious attacking pressure on black's positon with a direct assault which is why the deferred Queenside to Kingside attack is very successful in the Bayonet. At 1600 level, if you know how to storm the queenside w/ b4, c5 , Rc1, etc., I think you'll find that you can really blow a lot of KId players out of the water with the Bayonet if you're prepared. While you will have to learn a few side-variations if black plays some inferior alternative in the first 10 moves, After 2. Nf3 g6 I would vote 3. c4.