Which one of the following is true about work zone speed limits?

Work zones can be dangerous for both drivers and workers. In work zones, driving slower or faster than the surrounding traffic is a major cause of rear-end collisions. In New Hampshire, the fine for speeding in a work zone when workers are present is between $250 and $500. [Speed Limits, Part Nine - Speed, State of New Hampshire Driver's Manual], [NH Rev Stat § 265:6-a]