Yeah, I haven't known how to reply since I might use B, C, or D, depending on whether I'm in nyc or jersey and whether there's right on red. Going east to west: New york drivers treat me like I have a separate bike lane whether it's painted or not and I filter up the right to get to the front, asserting myself just as the light changes (position C). I'll only claim a lane if I need it for a left turn. In genteel jersey drivers treat me like I'm in the line-up even if I remain on the shoulder so I stay there and take my turn when it comes (position D, however far back that is when I arrive). In parts of jersey where they are less clear on a. how to treat bikes and b. how to drive in general, I'll take B if there's right on red or the lane if there's not.

Even though there's no official hand signal for "going straight" there are some times when I catch the eye of the driver next to me to indicate this by pointing ahead, which takes care of the problem of drivers not knowing whether I'm a cyclist who would signal a turn or not.