How about adding 3a's 3a/3b to the list. Possible 2c & 2c/3a too? Could be why the low numbers for 3's.
It could be. There are limits on how many options you can put in a poll, so I had to restrict the number of options. There's another poll someone did around here and it seems very few members are 3a or lower, so I just cut them out. Sorry 3as!